[最も好ましい] y=x^2 4x 4 in vertex form 324242-Y=x^2-4x-4 in vertex form

Solution for Write y=x^24x10 in vertex form Identify the axis of symmetry, extrema, and zeros Then graph the functionWell x^24x4 is pretty standard Thus the xcoordinate of the vertex is (4)/2 OR 4/2 which is 2 now what is f (2)?2^2 8 4 = 8 So our ycoordinate is 8 The vertex is (2,8) OR h=2 and k=8 So to put this in vertex form, we simply substitute for y= (xh)^2 k and h=2 k =8 we get

How To Find The Vertex Of A Quadratic Equation 10 Steps

How To Find The Vertex Of A Quadratic Equation 10 Steps

Y=x^2-4x-4 in vertex form

Y=x^2-4x-4 in vertex form-7/24/18 · Explanation the equation of a parabola in vertex form is ∙ xy = a(x− h)2 k where (h,k) are the coordinates of the vertex and a is a multiplier to obtain this form complete the square y = − (x2 − 4x− 4) y = − (x2 2(− 2)x 4− 4− 4) y = − (x− 2)2 8 ← in vertex formCreate your account View this answer Given y =x24x−1 y = x 2 4 x − 1 The vertex form of a parabola is given by (y−k) = (x−h)2 ( y − k) = ( x − h) 2 The given expression is

How To Find The Vertex Of A Quadratic Equation 10 Steps

How To Find The Vertex Of A Quadratic Equation 10 Steps

4/22/19 · Write this quadratic function in the vertex form y = 4(x5)(x2) = 4(x² 3x – 10) = 4(x² 3x 9/4 – 10 – 9/4) = 4(x² 3x 9/4) – 49 = 4(x3/2)² – 49 Ans y = 4(x3/2)² – 49 VertexYou can put this solution on YOUR website!Vertex form y= (x2)^2–12 or y16=(x2)^2 Here's my work 1 The given standard form equation y=x^2–4x12 2 Adding 12 on both sides 3 1 y12=x^2–4x 4 Completing the perfect square on the right side of the equation by adding 4 to both sides of

The graphs of y = x 2 and y = x 2 are symmetric about the yaxis, called the axis of symmetry In general, the axis of symmetry for the graph of a quadratic function is the vertical line through the vertex The Graph of a Quadratic Function The graph of the more general function y = ax 2 bx c is described below The graph of y = ax 2 bx c is a parabola with these characteristicsOne formula works when the parabola's equation is in vertex form and the other works when the parabola's equation is in standard form Standard Form If your equation is in the standard form $$ y = ax^2 bx c $$ , then the formula for the axis of symmetry is $ \red{ \boxed{ x31 Find the Vertex of y = x 2 4x96 Parabolas have a highest or a lowest point called the Vertex Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) We know this even before plotting "y" because the coefficient of the first term, 1 , is positive (greater than zero) Each parabola has a vertical line of symmetry

10/31/16 · 2) Let f(x) = x^3 − 4 Which of these is the equation for the normal algebra Suppose a parabola has a vertex (4,7) and also passes through the point (3,8) Write the equation of the parabola in vertex form f(x)=a(xh)^2k I believe h=4 k=7 Not sure what to do from here You can view more similar questions or ask a new questionQ Write y = x 2 4x 1 in vertex form answer choices y = (x 2) 2 5 y = (x 2) 2 5 y = (x 2) 2 1 y = (x 2) 2 3 s Question 13 SURVEY seconds Q Fill in the blank When we convert from standard to vertex form, the a value will _____ answer choices5/14/14 · The vertex and yintercept of the graph of f(x) = –4(x 3)^2 7 is vertex (–3, 7), yintercept –29 Added 5/19/14 PM This answer has been confirmed as correct and helpful

Example 4 Write A Quadratic Function In Vertex Form Write In Vertex Form Then Identify The Vertex X 2x 2 10x 22 Y Solution X 2x 2 10x 22 Y Write Ppt Download

Example 4 Write A Quadratic Function In Vertex Form Write In Vertex Form Then Identify The Vertex X 2x 2 10x 22 Y Solution X 2x 2 10x 22 Y Write Ppt Download

Solved Use The Quadratic Function F X X2 4x 4 To An Chegg Com

Solved Use The Quadratic Function F X X2 4x 4 To An Chegg Com

Y=x24x4 No solutions found Rearrange Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation y(x^24*x4)=0 Step How do you graph the function, label the vertex, axis of symmetry, and xinterceptsThis calculator will find either the equation of the parabola from the given parameters or the axis of symmetry, eccentricity, latus rectum, length of the latus rectum, focus, vertex, directrix, focal parameter, xintercepts, yintercepts of the entered parabolaThe vertex form is a special form of a quadratic function From the vertex form, it is easily visible where the maximum or minimum point (the vertex) of the parabola is The number in brackets gives (trouble spot up to the sign!) the xcoordinate of the vertex, the number at the end of the form gives the ycoordinate This means If the vertex form is , then the vertex is at (hk) How to put a function into vertex form?

Answered Complete The Square To Re Write The Bartleby

Answered Complete The Square To Re Write The Bartleby

Oirection Write The Following See How To Solve It At Qanda

Oirection Write The Following See How To Solve It At Qanda

Y = x^2 6x 4 This is a Parabola the vertex form of a parabola opening up or down, where (h,k) is the vertex Standard Form of an Equation of an Ellipse is where Pt (h,k) is the center where Pt (h,k) is a center with verticesThere are several ways to find the line of symmetry, personally I find the easiest way is to go to the quadratic formula For any quadratic equation in the form ax^2 bx c = 0, x = (b / sqrt(b^2 4ac))/(2a) In this equation the b^2 4ac bi8/25/18 · TRANSFORM THE EQUATION Y=X^24X10 TO VERTEX FORM AND DETERMINE THE VALUE OF H AND K queenbela queenbela Math Junior High School TRANSFORM THE EQUATION Y=X^24X10 TO VERTEX FORM AND DETERMINE THE VALUE OF H AND K 1 See answer Brainly User Brainly User

What Would An Equation For A Quadratic Function In Vertex Form With Vertex 1 6 That Passes Through The Point 3 4 Be Quora

What Would An Equation For A Quadratic Function In Vertex Form With Vertex 1 6 That Passes Through The Point 3 4 Be Quora

What Are The Coordinates Of The Vertex For F X X 4x 10 Quora

What Are The Coordinates Of The Vertex For F X X 4x 10 Quora

The standard form equation stated in the Desmos graph is initially \(y=x^26x4\text{}\) Note that the vertex of the resultant parabola is located at the point \((3,5)\text{}\) This means that in the vertex form of the equation, \(h=3\) and \(k=5\text{;}\) use theY=x^24x32 is in the form y=ax^2 bx c The symmetry of that form would be a vertical line with the equation convert to vertex form y=2x^26x1 and y=x^24x1 510/27/19 · Points to concentrate on 1The increase in jobs that will come with an increase in investment 2The money that the tourists will bring into the local economy 3The progress and development of your city will result in it becoming more important with not only your region but also your country as well 4Better for the young people of your city as there will be much more

Vertex Intercept And Standard Form Ck 12 Foundation

Vertex Intercept And Standard Form Ck 12 Foundation

Solved I Write The Equation Below In Vertex Form Y 12x Chegg Com

Solved I Write The Equation Below In Vertex Form Y 12x Chegg Com

Vertex Form DRAFT 2 years ago by lori919 Played 1 times 0 9th 11th grade Mathematics 90% average accuracy 0 Save Q Write y = x 2 4x 1 in vertex form answer choices y = (x 2) 2 5 y = (x 2) 2 5 y = (x 2) 2 1 y = (x 2) 2 3 s Question 7 SURVEY 900 seconds Q The axis of symmetry line passesVarious Tasks \( y=2x^214x4\\\\a=2;\ b=14;\ c=4\\\\vertex\ form y=a(xh)^2k\\\\where h=\frac{b}{2a}\ and\ k=\frac{(b^24ac)}{4a}\\\\h=\frac{14}{2\cdot26/21/19 · 👍 Correct answer to the question Given the equation y = x^24x9, write in vertex form where y = a(x−h)2k eeduanswerscom Subjects English

5 3 Vertex Form Of Quadratic Functions Translating Pages 1 4 Flip Pdf Download Fliphtml5

5 3 Vertex Form Of Quadratic Functions Translating Pages 1 4 Flip Pdf Download Fliphtml5

Use Completing The Square To Rewrite Y X 2 4x 13 In Vertex Form Identify The Maximum Or Minimum Brainly Com

Use Completing The Square To Rewrite Y X 2 4x 13 In Vertex Form Identify The Maximum Or Minimum Brainly Com

Asked Feb 27, 14 in ALGEBRA 2 by linda Scholar6/10/18 · #y=x^24x4# complete the square to get #y=(x2)^2# pick out the x value (2), and the y value (o) to get #(2,0)# method 2 #y=x^24x4# #\frac{dy}{dx} = 2x4# let #\frac{dy}{dx}=0# as the vertex is when the gradient of the curve is 0 to get #x = 2# substitute that into the original equation to get #(2,0)#10/3/18 · When we have the equation of a parabola, in the form y = ax^2 bx c, we can always find the x coordinate of the vertex by using the formula x = b/2a So we just plug in the values In this case, the equation in form y = ax^2 bx c is equal to y=x^2 4x 12 So a=1, b=4, and c=12 So we can plug in x = b/2a x = (4)/2(1) x = 4 / 2

How To Find The Vertex Of A Quadratic Equation 10 Steps

How To Find The Vertex Of A Quadratic Equation 10 Steps

Vertex Form Of Quadratic Equation Mathbitsnotebook Ccss Math

Vertex Form Of Quadratic Equation Mathbitsnotebook Ccss Math

Vertex\y=x^ {2}2x3 vertex\y=3x^ {2}5x vertex\y=x^ {2} vertex\y=2x^ {2}2x2 functionvertexcalculator enY=x^2 4x1 vertex form Use the form , to find the values of , , and When written in "vertex form" • (h, k) is the vertex of the parabola, and x = h is the axis of symmetry • the h represents a horizontal shift (how far left, or right, the graph has shifted from x = 0) • the k represents a vertical shift (how far up, or down, the graph has shifted from y = 0) • notice thatX^ {2}4x4=y Swap sides so that all variable terms are on the left hand side \left (x2\right)^ {2}=y Factor x^ {2}4x4 In general, when x^ {2}bxc is a perfect square, it can always be factored as \left (x\frac {b} {2}\right)^ {2} \sqrt {\left (x2\right)^ {2}}=\sqrt {y}

5 2 Quadratic Functions Mathematics Libretexts

5 2 Quadratic Functions Mathematics Libretexts

Fireworks From Standard To Vertex Form Ppt Video Online Download

Fireworks From Standard To Vertex Form Ppt Video Online Download

FIFC8 Vertex Form of a Quadratic Answer Section 1 ANS 2 REF ai 2 ANS 1 x2 −12x7 x2 −12x36−29 (x−6)2 −29 REF 0815ai 3 ANS 1 y=x2 24x144−18−144 y=(x12)2 −162 REF ai 4 ANS 3 3(x2 4x4)−1211 3(x2)2 −1 REF ai 5 ANS 4 y−34 =x2 −12x y=x2 −12x34 y=x2 −12x36−2 y=(x−6)2 −2 REF4/2/19 · Write the quadratic function given in vertex forms y= 3(x2) ^2 5 in standard form asked Oct 24, if i divide 2i by x^33x^24x12 using synthetic division what is my answer asked Dec 7, 13 in ALGEBRA 1 by skylar Apprentice syntheticdivision;I write the function of y = x^2 14x 11 into vertex form About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How works Test new features ©

Write Each Function In Vertex Form 1 Solution Answer Y X

Write Each Function In Vertex Form 1 Solution Answer Y X

Answered Complete The Square To Re Write The Bartleby

Answered Complete The Square To Re Write The Bartleby

5/15/19 · Let's follow this procedure and place \(f(x) = x^2 4x 7\) in vertex form Take half of the coefficient of x Thus, (1/2)(4) = 2 Square this result Thus, \(2^2 = 4\) Add and subtract 4 on the right side of the equation \(f(x) = x^2 4x 7\) \f(x)=x^{2}4 x447\ Group the first three terms on the righthand side · Then write the equation in the form y=ax^2bxc Vertex (5,3) and a=2 algebra 2 Write an equation in standard form for the hyperbola with center (0,0), vertex(4,0) , and focus (8,0) Algebra For the given quadratic equation convert into vertex form, find the vertex, and find the value for x = 6The vertex form of a parabola's equation is generally expressed as {eq} y=a{ \left( xh \right) }^{ 2 }k {/eq} where (h,k) is the vertex of the parabola and x=h is the axis of symmetry Answer

Vertex Axis Of Symmetry Of A Parabola Video Khan Academy

Vertex Axis Of Symmetry Of A Parabola Video Khan Academy

A Directions Transform T Descubre Como Resolverlo En Qanda

A Directions Transform T Descubre Como Resolverlo En Qanda

Follow Report by Johnny977 Log in to add a commentConvert to vertex form y=2x^214x4 Ask for details ;3/31/05 · Write an equation for the parabola with vertex at (4,2) and yintercept 2 write y=x^24x8 in vertex form solve using Square Root Property 9x^212x4=6 Solve Using Completing the Square 3x^2x2=0 Submitted 15 years ago

Changing Quadratic Functions From Standard Form To Vertex Form Flashcards Quizlet

Changing Quadratic Functions From Standard Form To Vertex Form Flashcards Quizlet

Quadratic Equation From Standard To Vertex Form By Claudia Austin

Quadratic Equation From Standard To Vertex Form By Claudia Austin

This video screencast was created with Doceri on an iPad Doceri is free in the iTunes app store Learn more at http//wwwdocericomWrite the following quadratic function in vertex form and sketch the parabola y = x 2 4x 3 Solution Step 1 In the quadratic function given, the coefficient of x 2 is 1 So, we can skip step 1 Step 2 In the quadratic function y = x 2 4x 3, write the "x" term as a multiple of 2 Then, y = x 2 2(x)(2) 3 Step 3Find the Vertex y=x^24x4 Rewrite the equation in vertex form Tap for more steps Complete the square for Tap for more steps Use the form , to find the values of , , and Consider the vertex form of a parabola Substitute the values of and into the formula Cancel the common factor of

Vertex Form To General Form Y Intercept Flashcards Quizlet

Vertex Form To General Form Y Intercept Flashcards Quizlet

Vertex Form Vertex Form Vertex Form Is Another

Vertex Form Vertex Form Vertex Form Is Another

What is y=x^28x1 in the general form?Find the Vertex Form y=x^24x1 Complete the square for Tap for more steps Use the form , to find the values of , , and Consider the vertex form of a parabola Substitute the values of and into the formula Simplify the right side Tap for more steps Cancel the common factor of andConvert to vertex form y=2x^26x1 and y=x^24x1 5 Educator answers Math Latest answer posted September 07, 12 at 433 AM `y=2x^24x3` Find the vertex and intercepts 2 Educator answers

Finding The Vertex Of A Parabola In Standard Form Video Khan Academy

Finding The Vertex Of A Parabola In Standard Form Video Khan Academy

The Vertex Form Of The Equation Of A Parabola Is Y 1 2 X 4 Squared 13 What Is The Standard Form Of Brainly Com

The Vertex Form Of The Equation Of A Parabola Is Y 1 2 X 4 Squared 13 What Is The Standard Form Of Brainly Com

We can use the vertex form to find a parabola's equation The idea is to use the coordinates of its vertex ( maximum point , or minimum point ) to write its equation in the form \(y=a\begin{pmatrix}xh\end{pmatrix}^2k\) (assuming we can read the coordinates \(\begin{pmatrix}h,k\end{pmatrix}\) from the graph) and then to find the value of the

Graph The Parabola Y X 2 4x 1 Youtube

Graph The Parabola Y X 2 4x 1 Youtube

Graphing Quadratic Functions

Graphing Quadratic Functions

Vertex Form Math5bruno

Vertex Form Math5bruno

Which Equation Represents Y X2 6x 7 In Vertex Form Y X 3 2 4 Y X 3 2 Brainly Com

Which Equation Represents Y X2 6x 7 In Vertex Form Y X 3 2 4 Y X 3 2 Brainly Com

Converting A Quadratic Function From Standard Form To Vertex Form Completing The Square Youtube

Converting A Quadratic Function From Standard Form To Vertex Form Completing The Square Youtube

Solved Find The Vertex Of The Parabola For The Equation Decide Chegg Com

Solved Find The Vertex Of The Parabola For The Equation Decide Chegg Com

4 7 Write In Vertex Form

4 7 Write In Vertex Form

Put Y X 2 8x 3 In Vertex Form Youtube

Put Y X 2 8x 3 In Vertex Form Youtube

Example 6 Write A Quadratic Function In Vertex Form Write Y X 2 10x 22 In Vertex Form Then Identify The Vertex Y X 2 10x 22 Write Original Ppt Download

Example 6 Write A Quadratic Function In Vertex Form Write Y X 2 10x 22 In Vertex Form Then Identify The Vertex Y X 2 10x 22 Write Original Ppt Download

Solved A Quadratic Function Is Given F X X 2 4x Chegg Com

Solved A Quadratic Function Is Given F X X 2 4x Chegg Com

How Do You Write F X X 2 4x In Vertex Form Socratic

How Do You Write F X X 2 4x In Vertex Form Socratic

Complete The Square To Rewrite Y X2 4x 5 In Vertex Form Then State Whether The Vertex Is A Brainly Com

Complete The Square To Rewrite Y X2 4x 5 In Vertex Form Then State Whether The Vertex Is A Brainly Com

5 3 Vertex Form Of Quadratic Functions Translating Pages 1 4 Flip Pdf Download Fliphtml5

5 3 Vertex Form Of Quadratic Functions Translating Pages 1 4 Flip Pdf Download Fliphtml5

Solution Write Each Function In Vertex Form Sketch The Graph Of The Function And Label Its Vertex 33 Y X2 4x 7 34 Y X2 4x 1 35 Y 3x2 18x 36 Y 1 2x2 5x

Solution Write Each Function In Vertex Form Sketch The Graph Of The Function And Label Its Vertex 33 Y X2 4x 7 34 Y X2 4x 1 35 Y 3x2 18x 36 Y 1 2x2 5x

4 1 Linear Applications Phone Charges The Monthly

4 1 Linear Applications Phone Charges The Monthly

How To Solve The Vertex Form Of A Quadratic Equation Sola Education

How To Solve The Vertex Form Of A Quadratic Equation Sola Education

Example 6 Write A Quadratic Function In Vertex Form Ppt Video Online Download

Example 6 Write A Quadratic Function In Vertex Form Ppt Video Online Download

4 7 Write In Vertex Form

4 7 Write In Vertex Form

Characteristics Of Parabolas College Algebra

Characteristics Of Parabolas College Algebra

Changing Quadratic Functions From Standard Form To Vertex Form Flashcards Quizlet

Changing Quadratic Functions From Standard Form To Vertex Form Flashcards Quizlet

Quadratic Functions

Quadratic Functions

What Is The Vertex Form Of Y X 2 5x 14 Socratic

What Is The Vertex Form Of Y X 2 5x 14 Socratic

Vertex Form How To Find The Equation Of A Parabola

Vertex Form How To Find The Equation Of A Parabola

How Do I Graph The Quadratic Equation Y X 2 4x 6 Socratic

How Do I Graph The Quadratic Equation Y X 2 4x 6 Socratic

Complete The Square Worksheet Elementary Mathematics Mathematical Objects

Complete The Square Worksheet Elementary Mathematics Mathematical Objects

How To S Wiki How To Complete The Square To Find Vertex Form

How To S Wiki How To Complete The Square To Find Vertex Form

Step To Draw Y X 2 4x 1and Find Solution To Quadratic Equation Y X 2 5x 4 Youtube

Step To Draw Y X 2 4x 1and Find Solution To Quadratic Equation Y X 2 5x 4 Youtube

Understand How The Graph Of A Parabola Is Related To Its Quadratic Function College Algebra

Understand How The Graph Of A Parabola Is Related To Its Quadratic Function College Algebra

Additional Vocabulary Support Manualzz

Additional Vocabulary Support Manualzz

Vertex Intercept And Standard Form Ck 12 Foundation

Vertex Intercept And Standard Form Ck 12 Foundation

Vertex Axis Of Symmetry Of A Parabola Video Khan Academy

Vertex Axis Of Symmetry Of A Parabola Video Khan Academy

Learn How To Convert To Vertex Form By Completing The Square And Then Graph Y X 2 4x 7 Youtube

Learn How To Convert To Vertex Form By Completing The Square And Then Graph Y X 2 4x 7 Youtube

4 1 Quadratic Functions 3 1 Ncb 502 Corequisite For Mat 1023 Openstax Cnx

4 1 Quadratic Functions 3 1 Ncb 502 Corequisite For Mat 1023 Openstax Cnx

3 Vertex Form

3 Vertex Form

Solved 5 Write The Equation Of The Parabola In Vertex Fo Chegg Com

Solved 5 Write The Equation Of The Parabola In Vertex Fo Chegg Com

How To Solve Quadratic Equation By Factoring Video Tutorial Practice Problems Plus Worksheet With Answer Key

How To Solve Quadratic Equation By Factoring Video Tutorial Practice Problems Plus Worksheet With Answer Key

Example 6 Write A Quadratic Function In Vertex

Example 6 Write A Quadratic Function In Vertex

Example 5 Change From Intercept Form To Standard Form Write Y 2 X 5 X 8 In Standard Form Y 2 X 5 X 8 Write Original Function Ppt Download

Example 5 Change From Intercept Form To Standard Form Write Y 2 X 5 X 8 In Standard Form Y 2 X 5 X 8 Write Original Function Ppt Download

Content Transformations Of The Parabola

Content Transformations Of The Parabola

1 Find The Vertex Point H K 2 A Will Be The A From The Standard Form Equation 3 Substitute Into Y A X H 2 K Ppt Download

1 Find The Vertex Point H K 2 A Will Be The A From The Standard Form Equation 3 Substitute Into Y A X H 2 K Ppt Download

Converting Quadratic Equations Worksheet Coach Forrester

Converting Quadratic Equations Worksheet Coach Forrester

Parabolas

Parabolas

Biomath Quadratic Functions

Biomath Quadratic Functions

Solution How To Get The Quadratic Intercept Form Converted To The Quadratic Vertex Form In The Equation Y 4 X 1 X 6

Solution How To Get The Quadratic Intercept Form Converted To The Quadratic Vertex Form In The Equation Y 4 X 1 X 6

How To Draw A Sketch Of The Graph Of The Parabola Y X 2 8x 10 Quora

How To Draw A Sketch Of The Graph Of The Parabola Y X 2 8x 10 Quora

What Is The Vertex Of Y X 2 4x 1 Socratic

What Is The Vertex Of Y X 2 4x 1 Socratic

Quadratics Review 1 Quadrtics Test Review 1

Quadratics Review 1 Quadrtics Test Review 1

Y X2 4x 6 Math Homework Answers

Y X2 4x 6 Math Homework Answers

What Are The Coordinates Of The Vertex For F X X 4x 10 Quora

What Are The Coordinates Of The Vertex For F X X 4x 10 Quora

Solved 2 Convert Y X 4x 7 To Vertex Form Identify The V Chegg Com

Solved 2 Convert Y X 4x 7 To Vertex Form Identify The V Chegg Com

What Is The The Vertex Of Y X 2 4x Socratic

What Is The The Vertex Of Y X 2 4x Socratic

Graphing Quadratic Functions

Graphing Quadratic Functions

Solution Solve By Vertex Form Y X 2 6x 12 Y 4x 2 24x 11

Solution Solve By Vertex Form Y X 2 6x 12 Y 4x 2 24x 11

Vertex Form Of Parabolas Kuta Software

Vertex Form Of Parabolas Kuta Software

Completing The Square Vertex Form Of A Quadratic Expii

Completing The Square Vertex Form Of A Quadratic Expii

Please Help Asap Write The Equation Of The Parabola In Vertex Form A Y X 2 2 4b Y Brainly Com

Please Help Asap Write The Equation Of The Parabola In Vertex Form A Y X 2 2 4b Y Brainly Com

Ppt 3 7 Warm Up Powerpoint Presentation Free Download Id

Ppt 3 7 Warm Up Powerpoint Presentation Free Download Id

How Do You Find The Vertex Of F X 2x 2 4x 6 Socratic

How Do You Find The Vertex Of F X 2x 2 4x 6 Socratic

Plot A Graph For The Equation Y X 2 4x 1

Plot A Graph For The Equation Y X 2 4x 1

Quadratic Functions

Quadratic Functions

Incoming Term: y=x^2-4x-4 in vertex form,

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