Christian is solving the equation x2 â€“ 12x = 4 by completing the square. What number must be added to both sides of the equation to complete the square?

77,930 results

Pre-Cal

Christian is solving the equation x2 – 12x = 4 by completing the square. What number must be added to both sides of the equation to complete the square?

asked by Anonymous on October 26, 2012

Algebra

Which of the following statements is true? A. Any quadratic equation can be solved by completing the square. B. Completing the square always gives two distinct solutions. C. You can’t complete the square if there is no constant in the equation. D. You

asked by Emma on July 21, 2014

Algebra

solve the equation by completing the square 3x^2-12x+1=0

asked by Lily on November 16, 2010

algrebra 2

it is called completing the square here is the equation 4x^2-4x+1=9 if anyone can help me please do okay i really need ot understand this 4x^2-4x+1=9 Move the numbers to the other side. 4x^2 -4x = 9-1 4x^2 -4x = 8 Now factor out 4 to make things easier.

asked by lisa on November 2, 2006

Algebra 2

Completing the square method allows you to solve any quadratic equation. For each of the following determine what number completes the square. I cannot find my notes on completing the square, can someone please help with these two problems? 1. x^2+8x 2.

asked by Christian on May 21, 2007

math

My problem I have involves a method that requires using the quadratic equations that comes from India. Here the problem that I have to solve : x to the second power plus 12x minus 64 equals 0 I need someone to walk me through each step to arrived to the

asked by Dave on February 13, 2011

Math

A sum of a number and it’s reciprocal is 2 1/30 (mixed fraction) determine the number? I have tried solving it with no luck. I get stuck on the part of completing the square. Please help me Thank you

asked by Star on March 31, 2018

Algebra

How do I solve a quadratic equation x^2 – x = 30 by completing the square- I don’t understand-could someone just explain the steps to solving this

asked by Jamie on September 21, 2010

algebra1

Olivia is solving the equation x^2-12x=18 what should she add to both sides to complete the square?

asked by mia on June 4, 2013

Algebra

I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain your reasoning.

asked by Charly on June 2, 2011

Algebra

I was given this answers to a problems I solved but I do not understand what she means hope you can help. Before attempting to solve this quadratic equation, determine how many solutions there will be for this quadratic equation. Explain your reasoning.

asked by Charly on June 2, 2011

Algebra Quadratic Equations

I am trying to define the different appraoches to solving quadratic equations. My book says using quadratic formula, completing the sqaure and factoring. I thought completing the square would be by facotring? How are these two different?

asked by Marysvoice on February 5, 2008

math

Rewrite by completing the square. 2x^2 – 12x + 11

asked by Cassy on January 19, 2014

Algebra

Completing the square method allows you to solve any quadratic equation. For each of the following determine what number completes the square. I cannot find my notes on completing the square, can someone please help with these two problems? 1. x^2+8x 2.

asked by Christian on May 21, 2007

trig

how do i solve this completing the square problem: 3x^2+12x+10=0

asked by Anonymous on April 26, 2011

COLLEGE ALGEBRA

Solve by completing the square 12x^2+11x=5

asked by KARINA on June 6, 2011

COLLEGE ALGEBRA ..HELP!

Solve by completing the square 12x^2+11x=5

asked by KARINA on June 7, 2011

math

Solve the equation by completing the square. If the solutions are real, give exact and approximate answers. Otherwise, list the exact solutions. 12x=-3x^2-14 Please help!!!!! 🙁

asked by Andrea on April 18, 2018

maths

The method for completing the square can be used to write the expression -2x^2+12x-5 in the form a(x+b)^2 +c, where a,b, and c are constants. What is the value of c? Thank you for any help.

asked by Trevor on May 20, 2011

maths

Consider the equation x(square) + 4px + 2q = 0 where p and q are real constants. a) by completing square, show that (x+2p)square =4P(SQUARE)-2q b) Hence show that x= -2p +/- square root(4 p(square) -2p ) c) Use the above results to solve the equations 1)

asked by Jayden Haddy on August 4, 2013

Algebra II

1)What method(s) would you choose to solve the equation: x2 + 2x – 6 = 0 A. Square roots; there is no x-term. B. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. C. Factoring; the equation is easily factored.

asked by Hally on January 15, 2013

maths

The method for completing the square can be used to write the expression −2x^2 + 12x−5 in the form a(x + b)^2 + c, where a, b and c are constants. Choose the option that gives the value of c. Options A −23 B −13 2 C 5 2 D 3 E 13 F 14

asked by albert on May 11, 2011

Math

Solving quadratic equations by completing the square. Could you show me every step how to do it. That way I’ll know probably know how to do the other ones. With that method you use. 1/2x^2 + x -13 = 0

asked by Basil on October 30, 2009

Algebra

To solve 9x^2-12x+4=49 by using the Square Root Property, you would first rewrite the equation was as A. 9x^2-12x-45=0 B.(3x-2)^2=+/-49 C.(3x-2)^2=7 D.(3x^2)^2=49

asked by Jenny on December 13, 2014

Algebra 2 -Conics

The directions are : Write each equation in standard form (if needed), then find appropriate information for the particular conic. the question: y=2x^2-12x+19 HOW DO I BEGIN??? Complete the square and rewrite as y = 2x^2-12x + 19 = 2(x^2 – 6x + 9)+ 19 – 18

asked by Devyn on February 15, 2007

algebra1

could you walk-through the steps to solving this problem because I am stuck; 3x-5(3x-7)=2(x+9)+45 Let me know if you have a question in any step. 3x-5(3x-7)=2(x+9)+45 3x-15x+35= 2x+18+45 -12x+35 = 2x+63 -35 -35 -12x= 2x +63-35 -12x= 2x +28 -2x -2x -12x-2x

asked by unknown on March 21, 2007

Algebra 1

I have to get this last problem done it’s for my project here’s the problem: solve by completing the square method x 2- 12x =-11

asked by Bo on May 2, 2013

Math check please

- Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve the equation by completing

asked by Kendra on March 19, 2015

maths

how do i find out the the equation of the line of symmetry for f(x)=ax^2+bx+c ? please explain it do me thanks! The line of symmetry runs through the vertex. so the x of the vertex is -b/(2a) and the equation of the line of symmetry is x = -b/(2a) e.g. for

asked by Emma on May 25, 2007

Algebra 2

Replace each of the question marks with a value that will make the polynomial a perfect square trinomial. 1. 4x^2+12x+? 2. ?+90x+81 Could someone show me how to solve these? Take the first: factor out the 4 4x^2+12x+? 4( x^2 + 3x + ?) take half the center

asked by Christian on May 21, 2007

Math (Quadratics)

- Solve for x in 8x^2 + 2x – 4 = 0 I have tried factoring, taking out a GCF then factoring, completing the square, and got a bunch of wrong answers. I thought we were supposed to complete the square, so maybe I’m just doing that wrong. I’m not looking for

asked by Ariana on October 8, 2015

alg2/trig

1)3x^2-12x-21 solve by completing the square in simplest radical form 2) (1/x+3)-(2/3-x)=(4/x^2-9)find values of x 3)3/radical(3a^2b^4) is equivalent to 4) factor completely 27x^-75x^4

asked by alice on January 22, 2012

Math

Hi everyone. Would someone be able to help me with this problems? I know it’s a lot, if you only want to help with one or two, that is fine!! 9. Could you show how to use factoring and the zero-proudct property to find the zeros of each quadratic function?

asked by Eliza on November 19, 2008

maths

solve the following equation by completing the square x(square) – 4(square root 5)x =6 = 0 Then x= or x=

asked by Jayden Haddy on August 3, 2013

math

i need to solve this equation by completing the square: x^2-14x+1=0 i don’t’ know how to do this, nor do i know what complete the square means. please help.

asked by Nic on November 4, 2008

maths

solve the following equation by completing square x(square) + 5x – 84 Pls show steps x= or x=

asked by Jayden Haddy on August 3, 2013

Sameul

by completing the square method solve the equation. x^2-2x-1 can u factor it? when i did it it couldn’t be factored. i also don’t know why it is not factorable because its a perfect square right? please help me

asked by Math 10 on October 31, 2009

math 10

by completing the square method solve the equation. x^2-2x-1 can u factor it? when i did it it couldn’t be factored. i also don’t know why it is not factorable because its a perfect square right? please help me

asked by shajevan on October 31, 2009

Math

Solve the equation by factoring, by finding square roots, or by completing the square. 4(x+8)^2=144 I’m not sure if I’m suppose to divide or multiply the 4 to both sides..

asked by Linda on November 10, 2011

maths

solve the following equation by completing the square x(square) -13x + 21 = 0 Then x= or x=

asked by Jayden Haddy on August 3, 2013

trinometry

consider the polar equation r=7 cos(θ+ pi divided by 4) A) change the equation to rectangular coordinates. B) by completing the square, obtain the Standard form of this well-known equation. I NEED HELP WITH THIS PROBLEM I DON’T KNOW WHERE TO START.

asked by jojo on November 20, 2015

algebra

1)Solve by factoring:5x^2=4-19x answer=-4,1/5 2)Which quadratic equation has roots 7 and -2/3? answer=A A.2x^2-11x-21=0 B.3x^2-19x-14=0 C.3x^2+23x+14=0 D.2x^2+11x-21=0 3)To solve 4x^2-28x+49=25 by using the square root property,you would first rewrite the

asked by Marissa on August 14, 2007

Calculus!! HELP!!

1) The sides of the triangle shown increase in such a way that (dz/dt=1) and (dx/dt=(3dy/dx)) At the instant when x = 12 and y = 5, what is the value of dx/dt? 2) Let f(x) = x^3 − 4. Which of these is the equation for the normal line to this curve at the

asked by Prince@18 on December 17, 2016

math,help

how do i find the following: is there a formula for this? Problem #15 Find the constant term that should be added to make the following expression a perfect square trinomial. x^2+7x square a few binomials and see if you can see a pattern e.g. (x+3)^2 = x^2

asked by jasmine20 on April 15, 2007

Math – urgent

When solving for x by completing the square as in the equation 3(x-1)^2-1=0 should I add one to both sides then divide by three or add one to both sides then square root both sides? It makes sense to me to first divide by three, but if I do this, I’m not

asked by Isobelle on October 16, 2008

MATH

- The equation y = 4.5x² + 9x + 15 describes the height of a diver, in metres, at x seconds. Change this equation into vertex form by completing the square. State the y-intercept, the equation of the axis of symmetry, and the vertex. B. Before locating

asked by pewdiepie on December 31, 2018

Math

Consider the equation x^2 + 20 = 12x A) draw geometric diagram representing this equation. B) Show how to complete the square geometrically. C) Solve the equation.

asked by John on April 10, 2008

algebra help

My class is doing a unit on the “completing the square method” which is used to solve quadratic equations. I need help understanding this method. It’s not making any sense right now! I have two problems and I need to figure out which number completes the

asked by Bailey on January 4, 2007

I need help with algebra ASAP!

I’m in Algebra 1 this year and I really need help solving these equations. Completing the square 1)c^2-7c= -12 2)x^2-2x-8= 0 Incomplete Quadratic Equations 1) 2x^2-2 = 16 Any advice will be appreciated! c^2-7c= -12 What is 1/2 of -7? Square that, and add

asked by Jessica on August 24, 2005

math

Transform the equation by completing the square: 4x^2 + y^2 – 8x + 6y -3 =0

asked by Boby on March 11, 2012

Algebra

How do you solve the equation by completing the square X^2+4x=10

asked by Steph on October 4, 2014

Math

Transform the equation by completing the square: y^2 + 2x – 6y – 7 = 0

asked by Joe on March 8, 2012

math/trigonometry

solve this equation by completing the square. x^2+4x-21=0

asked by Sally on May 23, 2010

Algebra

Can you solve these equation by completing the square 2x^2+7x-4=0 3x^2x-1=0

asked by Amy on November 7, 2014

Math

How do you solve the equation by completing the square X^2+4x=10

asked by Steph on October 4, 2014

Math

Solve the equation by completing the square x^2 -18 x =19 a. 1; 19 b. -1;19*** c. 3;6 d. 3:1

asked by Anonymous on February 28, 2018

Algebra

Solve the equation by completing the square. x² – 7x – 4 = 0 • 7.53, –0.53 • –7.53, –0.53 • –7.53, 0.53 • 7.53, 0.53

asked by Sandra on April 4, 2014

Math

Solve the equation by completing the square. 2x^2 + 9x + 1 = 0

asked by Kim on June 6, 2013

math

solve the equation by completing the square: x^2-9x-2=0

asked by princess on January 4, 2009

algerbra

could you please double check my work question:find the roots of the equation 2x^2+8x=12 by completing the square. leave answer in simplest radical form. work and answer: c=(b/2)^2 c(4/2)^2=4 2x^2 +8x=12 divide everything by 2 x^2 + 4x=6 x^2+4x+4=10

asked by Liz on April 22, 2017

pre cal

What is the center of the conic whose equation is x^2 + 2y^2 – 6x + 8y = 0 2.Which one of the following equations represents a hyperbola? (5 points) A) 3x^2 + y^2 + 12x – 7 = 0 B) 3x^2 + 3y^2 + 12x – 7 = 0 C) 3x^2 + y + 12x – 7 = 0 D) 3x^2 – 3y^2 + 12x – 7

asked by Mecie on April 16, 2012

Math

- Solve the equation using all three methods below. Factoring, completing the square, quadratic formula. x^2 + 3x – 4 = 0 and 4x^2 = 9 it seems like x^2 + 3x – 4 = 0 equals x = 1, -4 from all three methods but Im not sure 4x^2 = 9 equals x = 3/2, -(3/2)

asked by anonymous on September 2, 2018

Math

Solve each quadratic equation by completing the square. x^2-6x+2=0

asked by kevin Chen on November 3, 2010

Algebra

Can 2x^2+5x+10=0, be factored? If not, how do use, completing the square method for this equation? Thanks!

asked by Swtpllypb on September 20, 2009

math

2x^2 + 5x – 8 = 0 Solve the quadratic equation by completing the square.

asked by Jack on September 20, 2012

Math

Find the roots of the given equation by completing the square: ax^2+bx+c=0

asked by Devin on February 25, 2012

HELP ! Algebra

Solve the quadratic equation by completing the square. (-x^2 + 6x + 10 = 0)

asked by Robert on November 16, 2012

Algebra

Find the roots of the given equation by completing the square. αx^2 + βx + δ = 0

asked by omar on February 27, 2012

math

2x^2 + 5x – 8 = 0 Solve the quadratic equation by completing the square.

asked by Jack on September 20, 2012

Math

by completing the square, what value should you add to each side of the equation? x^2- 7x=5

asked by Kelly on April 24, 2016

Albebra

c squared-4c-12=0 we have to solve each equation by completing the square.

asked by Ron on December 4, 2007

algebra

solve the quadratic equation by completing the square -3x^2+9=1

asked by helen on December 18, 2013

Math

Transform the equation or inequality by completing the square. y^2+3x-6y-7=0

asked by Matt on February 27, 2012

Algebra

Can someone help me with these two equations, I need to solve them by completing the square, I know the answers, (Number 1 is -11.56, 1.56, and number 2 is -10.35, 1.35) I just can’t remember how to get those numbers again, I have so much math on my

asked by Aaron on December 16, 2016

Math check

Complete the square: x^2 -12x. Which of the following is the correct perfect-square trinomial? the answers are: a.) x^2 +22x+121 b.) x^2 -10x+25 c.) x^2 -20x+44 d.) x^2 -12x+36 This is tough because the answers could be a.) b.) and d.) I am not sure which

asked by Shawn on November 9, 2008

Calc

A rectangular storage container with an open top is to have a volume of 15m^3. The length of the base is twice the width of the base. Material for the base costs $6 per square meter. Material for the sides costs $7 per square meter. Find the cost of the

asked by Martina on March 29, 2007

Math

Transform the equation by completing the square: 4x^2 + y^2 – 8x + 6y -3 =0 Also show foci

asked by Jason on February 27, 2012

college math

Solve the quadratic equation by completing the square. x^2 + 14x + 35 = 0 and x^2 + 8x = 5

asked by juliana on May 22, 2012

math

Transform the equation or inequality by completing the square. x^2+y^2+4x-10y+20

asked by Bobby on February 27, 2012

college algebra

The goal of this problem is to solve the equation by completing the square. x^2-9x+14=0

asked by john on September 13, 2011

maths –plse help me..

solve the following equation by method of completing the perfect square:- 4x^2 + 4 √3 x +3=0

asked by Anonymous on December 13, 2012

algebra

Solve the quadratic equation by completing the square. -3x^2+9x=1 Not sure how to do these, if someone could expplain.

asked by Lee on October 31, 2012

math

Solve the equation by completing the square 16x^2+1=7x!!! Please help me ASAP!!!! 🙁

asked by Andrea on November 16, 2018

MATH

Solve the equation using completing the square method x^2-6x+9 Please I need your solutions

asked by Simon on February 26, 2018

Math

Using the method completing the square. Find the roots of this equation 4d^2= (d+4)(-d+12)

asked by Zulaiykherh on January 1, 2017

algebra 2

Samantha needs to solve the equation x2 – 12x = 40. What must she do to each side of the equation to complete the square?

asked by alexa on October 8, 2012

algebra 2

Samantha needs to solve the equation x2 – 12x = 40. What must she do to each side of the equation to complete the square?

asked by alexa on October 8, 2012

Math

- What is the simplified form of the expression? 2×2 + 4y + 3×2 – 2y + 3y (1 point) 5×4 + 5y2 5x2y + 5x2y 5×2 + 5y 10x2y 2. Simplify the following expression: 2(6x + 18) (1 point) –12x + 36 8x + 20 6x + 36 12x + 36 3. What is the product? 4 • (–5)

asked by helper on September 13, 2018

Algebra

What is the vertex form of the equation? y = -x^2+12x-4 My work: -(x^2 + 12x)-4 -(x^2 + 12x + 36)-4 + 36 Y= -(x+36)^2 + 32 Is this correct? I am not sure if I did this right or not? Thank you!

asked by Mitch n’ Joey on October 25, 2017

math

The rectangle given has a perimeter of 14 units. Find the value(s) of x by factoring a quadriatic equation. one side= 12/(x+1) other side= 6/(4-x) Remember that the perimeter of a rectangle is: P = 2L + 2W Note: P = perimeter, L = length, and W = width.

asked by Shay on January 17, 2007

Algebra 1

A square painting is surrounded by a frame. the outside edges of the frame are x inches in length, and the frame is 3 inches thick. What is the total area of the frame? A)-12x+36 B)12x-36 C)x^2+12x+36 D)x^2-12x-36 Is it C or D?

asked by Sam on December 22, 2016

math

- Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 – 6x = –8

asked by Tina on May 23, 2014

this math tho

- Solve the equation by completing the square. Round to the nearest hundreth if necessary. x^2 – 6x = 7 x = 7, 1 x = -7, 1 x = -7, -1 x = 7, -1

asked by This Girl on June 13, 2014

Algebra 1

Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 + 3x – 5 = 0 A.1.19, –4.19 B.–8.75, 5.75 C.1.66, 2.69 D.1.05, –4.05

asked by Chief4Keef5Sosa6 on March 1, 2018

Math

Consider the general quadratic equation ax^2 + bx + c = 0, where a is not equal to 0. Solve for x by completing the square.

asked by Annika on July 7, 2014

Math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property… -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by

asked by Amy on May 27, 2009

Math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property… -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by

asked by Amy on May 26, 2009

math

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property… -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by

asked by Amy on May 26, 2009

Algebra

1)Solve by factoring:5x^2=4-19x answer=-4,1/5 2)Which quadratic equation has roots 7 and -2/3? answer=A A.2x^2-11x-21=0 B.3x^2-19x-14=0 C.3x^2+23x+14=0 D.2x^2+11x-21=0 3)To solve 4x^2-28x+49=25 by using the square root property,you would first rewrite the

asked by Marissa on August 12, 2007

math

The radius of a cylinder is 3x-2 cm. The height of the cylinder is x+3 cm. What is the surface area of the cylinder? The choices are: 2pi(3x^2 + 10x – 8) 2pi(12x^2 + 7x – 2) 2pi(12x^2 – 2x + 13) 2pi(12x^2 – 5x – 2) Please help me in setting this up and

asked by Jane on March 4, 2013