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May 6, 2016

# Search: math- solving quadratic equations by factoring

Number of results: 124,184

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?
February 5, 2008 by Marysvoice

MATH
Which method of solving quadratic equations should be used when only an estimated solution is necessary? factoring quadratic formula graphing MY GUESS GRAPHING?
February 26, 2015 by Meredith Grey

These simple ones kill me: 16y^2=49 Thanks
March 4, 2008 by Nick

math
please anwer these: 1) how can i multiply and divide polynomials containing radicals? 2) how can i solve radical equations? 3) how can i solve qudratic equations by factoring ? 4) how can i solve quadratic equations graphically ? thank you !!!!!
August 13, 2014 by chen

Algebra
Solve the equation. Use factoring or the quadratic formula, whichever is appropriate. Try factoring first. If you have any difficulty factoring, then go right to the quadratic formula. (Enter your answers as a comma-separated list.) (x+2)^2 + (x-7)(x-2)=16
April 17, 2015 by Merty

Algebra II
November 28, 2007 by JaneLee

algebra
Quadratic equations can be solved by graphing,using the quadratic formula, completing the square, and factoring. What are the pros and cons of the methods. when would each be appropriate?
February 7, 2012 by debby

Math - solving quadratic equations with factoring
A person jumps off a 20m high cliff into water below. The height of the person above the ground at time t seconds is given by the equation h=-5t^2+30. How long does it take the person to reach the half way mark to the water?
January 24, 2012 by Amy

math 117
Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Explain why.
December 5, 2011 by Anonymous

Sheila has a picture frame that measures 20 cm by 30 cm. If she puts a mat inside the frame that decrease the picture by 264cm^2, how wide is the mat?
December 19, 2010 by math1

Math(Algebra)
An arrow is shot vertically upward from the top of a cliff 80 feet tall, with an initial velocity of 64 ft/s, (the acceleration due to gravity is -16ft/sec). a. Write the quadratic equation representing this scenario when h is 0. b. Find the roots (solutions) for this ...
October 5, 2012 by Joshua

Math help
I need help on these problems. There over solving equations by factoring. 1.4x^2=8
March 5, 2014 by Anonymous

Math (Algebra)
Could someone help to explain to me how factoring is used to solve quadratic equations?
July 27, 2010 by Lynn

Math help
I need help on these problems. There over solving equations by factoring. Don't get it at all. 1. (Y+5)(Y-7)=0 2. 2n(n-20)=0 3. (2t-3)(3t-2)=0 4. (2u+7)(3u-1)=0
March 4, 2014 by Anonymous

Algebra
Factor quadratic expressions: 2x^2 + 9x + 4 10x^2 + 70x + 100 Solve quadratic equations by factoring: 2x^2 + 9x + 4 = 0 Solve by taking square roots: (x - 5)^2 - 81 = 0
June 10, 2015 by Casey

math- solving quadratic equations by factoring
a ladder is resting against a wall. the top of the ladder touches the wall at a height of 12 feet. Find the distance from the wall to the bottom of the ladder if the length of the ladder is 12feet less than twice its distance from the wall.
December 19, 2010 by math1

Math
Explain how factoring is used to solve quadratic equations. Demonstrate the process with an example.
April 24, 2011 by Opera

Algebra 1
Which method is the best method for solving the equation 8x^2-123x+3=0 square roots factoring graphing quadratic formula my answer is quadratic formula
February 15, 2015 by Steve

Math help
I need help on these problems. There over solving equations by factoring. 1. 4x^2=9 2. M^2-36=16M 3. R^2+9=10r 4. 6s^2=17s-12
March 5, 2014 by Anonymous

math
May 3, 2009 by Bryan

ALGEBRA
Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer?

algebra2
May 15, 2008 by cody

algebra 2
how do you solve quadratic equations by factoring?
November 30, 2009 by converse

i am doing factoring with quadratic trinomials, And I dont understand any of it! The problem im working on is 5p2-22p+8 I factored it out to be (5p2-20p)(40p2-2p) I am so stuck, can anyone help
March 10, 2009 by Tiffany

ALGEBRA--MAT 117
Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Why?

Math
Solving quadratic equations by graphing? 3. x2-4x + 6 = 0 4. x2-4x-1=0 5. 4x2-12x + 3 = 0 6. x2-2x-4=0
February 27, 2011 by Erin

math
I'm doing solving quadratic equations.I need help with couple of problems. k(k+5)=0,4r^2=100
April 7, 2010 by lauren

Mat/117 DQ2
Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? Please provide examples. When might each method be most appropriate? Which method do you prefer? Explain why.
February 27, 2012 by Rose

Ok I get most of the problems except for these last two. x^2-16=0 and x^2=36 I seem to have trouble with the simplest of problems and none at all with the hard ones.
March 3, 2008 by Nick

ALGEBRA
Explain how factoring is used to solve quadratic equations. Demonstrate the process with an example.
June 7, 2011 by nina

Math (Algebra) Repost from July 27, 2010 at 4:13pm
Could someone help to explain to me how factoring is used to solve quadratic equations? Also could you give me some example to try? Thank You.
July 28, 2010 by Lynn

math algebra
Part 1: Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring and why? 1. −b 2. b2 − 4ac 3. 2a Part 2: Create your own quadratic equation. Using complete sentences, and your answer from part 1, determine whether ...
August 11, 2010 by Ka'Sandra

How do you solve this by factoring? 4p^2 + 121 = 44p I seriously don't understand and it's frustrating for me. Please help. (:
December 4, 2008 by Landon

algebra
Can someone help me explain how factoring is used to solve quadratic equations? I can't find an explaination anywhere.
November 24, 2010 by Shelley

the original dimensions of a rectangle were 15 by 20 cm. when both dimensons were decreased by the same amount, the area of the new rectangle is half the area of the original rectangle. find the dimensons of the new rectangle.
December 19, 2010 by math1

the original dimensions of a rectangle were 15 by 20 cm. when both dimensons were decreased by the same amount, the area of the new rectangle is half the area of the original rectangle. find the dimensons of the new rectangle.
December 19, 2010 by math1

Algebra II
Need help please. Thank you. 1. Determine whether the function has a maximum or minimum. State that value. f(x)= -2x^2-4x 2. Determine what c would in order to complete the square. x^2-5x+c 3. Solve the quadratic by factoring. 3x^2-16x+5=0 4. Solve the quadratic by factoring. ...
November 24, 2015 by Michael

I couldn't find the sets of factors that add up to -13 in this problem. Plz help, anything is greatly appreciated! x^2-13x+36 Thx for helping ppl! you could use the quad. eqn which is -b plus or munus sq root of b squared minus 4 ac all over 2 a That is a good idea but I need ...
February 12, 2007 by Emily

Solve the following quadratic by either factoring or using the quadratic formula: 6x2 - 5x = 6 6x^2 -5x -6 = 0 (3x+2)*(2x-3) = 0 Take it from there
June 29, 2007 by Margie

Algebra2
Find the polynomials roots to each of the following problems: #1) x^2+3x+1 #2) x^2+4x+3=0 #3) -2x^2+4x-5 #3 is not an equation. Dod you omit "= 0" at the end? #2 can be factored into (x+1)(x+3) = 0, so the roots are x=-1 and -3. #1 Use the quadratic equation for the roots [-b...
May 13, 2007 by Haylee

math help how do i do this
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b^2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2 + 6x + 2 = 0
March 1, 2016 by Oscar

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
October 30, 2009 by Basil

math
Describe the importance of quadratic equations to a basketball player, diver, or even a sniper. Give an example of a real-world situation where you would apply quadratic equations
February 17, 2012 by Leo

math
Jenny wanted to solve the quadratic equation x2 - 11x +18 = 0 by factoring. Which of the following equations would lead her to solve the given equation?
August 30, 2014 by cam

Algebra 2
I need to know how to solve quadratic equations by factoring. Can you so a step by step explanation to this sample problem? 2 x -12x-28
November 30, 2009 by Joanna

Pre algebra
How do I solve Quadratic equations by factoring? (for example how would I solve n2 - 10n = -21 if I was supposed to get the answers 7 and 3?
June 7, 2012 by Grace

math
Hi, How could I find the line of best fit? I plotted each of the equations I had for a problem I'm solving. The equations were linear (y=ax+b) and quadratic (y=ax+b+c). I'm supposed to find out which line is the most appropriate for the data that is given to me. When looking ...
March 17, 2008 by Irene

Algebra Question
Quadratic equations can be solved by graphing, using the quadrat completing the square, and factoring. What are the pros and cons these methods? When might each method be most appropriate?
January 29, 2009 by pj

Math (Algebra 2)
Factoring by Using a Quadratic Form Problem: x^4 + 8x^2 - 20 What I have so far: (x^2)^2 + 8(x^2) - 20 a^2 + 8a - 20 For some reason my textbook says to substitute the (x^2) with (a) as you can see in the las step. The next step after that is factoring [a^2 + 8a - 20].
January 31, 2011 by Mike

Math
Learning about quadratic functions and equations, and I am struggling. It's so easy for others to understand, but math is my weakness, would appreciate all the help you could give. Notes and stuff would be great, as long as I understand. Quadratic Functions and Equations, ...
November 24, 2011 by -Untamed-

MATH
im doing solving radical equations how do i do the squareroot of x+1=x+1 the squareroot is only around the first x+1 i got to the part 0=x^2+x is this right and if it is do i factor it or use the quadratic equation. thnx for the help!!!
March 12, 2008 by gabster

I'm doing quadratic equations x^2 +bx+c =0. I know how to questions like x^2 +17x +42 =0 but this one says, j^2-9jk-10k^2. I have no clue on what I need to do
October 11, 2011 by Austin

Math
What are the differences between linear and quadratic equations? How are these differences displayed in a graph? Write a brief scenario that can be modeled with a linear equation. Summarize a situation modeled by a quadratic equation. Are there equations that are neither ...
January 17, 2010 by Michelle

Algebra
Which is the easiest way to figure a quadratic equation; graphing, quadratic formula, completing a square and factoring?
February 4, 2008 by Marysvoice

Is the point (-3, -2) a solution of the intersection of the following set of quadratic equations: Y < - X ^ 2 X^2 + Y^2 < 16
April 27, 2011 by Christina

Perform step 1 on the equation. x^2+5X-6=0 and x^2+5x-6=0. How would i do this type of problem. I am so lost right now. I need some help
May 18, 2010 by Cha'Licia S.

algebra attn Reiny
Thanks for your help with the solving of the three equations! Yes, it was a typo. I just finished solving it a long way, solving for the 1st 2 equations then the 2nd and 3rd and plugging in variables...etc. etc. Your way gave the same answer, but quicker, does your way always ...
February 24, 2009 by Terri

You know how to solve quadratic equations using algebra, graphs and the quadratic formula. Sometimes one method of solving is more convenient than another method. Describe how you would solve each equation. Give reasons for you answers. A) 16x^2 = 1600 B) x^2 - 350 = 0 C) x^2...
March 30, 2009 by Joy

MATH ALGEBRA
Holly has a rectangular garden that measures 12m by 14m. SHe wants to increase the area to 255m^2 by increasing the width and the length by the same amount. What will the dimensions be of the new garden ? -solving that involves quadratic equations
April 10, 2013 by Krysty

MATH ALGEBRA
Holly has a rectangular garden that measures 12m by 14m. SHe wants to increase the area to 255m^2 by increasing the width and the length by the same amount. What will the dimensions be of the new garden ? -solving that involves quadratic equations
April 10, 2013 by Krysty

Algebra
How can you tell if an equation is quadratic and not linear? Quadratic equations contain a term that is squared (such as x^2). Linear equations are of the form y = mx + b, where m and b are constants. the variable in a quadratic equation must be squared ..but in linear ...
July 11, 2007 by Jess

Is the point (-3, -2) a solution of the intersection of the following set of quadratic equations: Y < -X^2 X^2 + Y^2 < 16 I'm not sure how to actually work this problem out. Can anyone help me with this problem please.
April 18, 2012 by Greg

MATH
I've been having problems with solving equations that involve fractions with the following problem can I get some help for solving equations that involve fractions? x+1=2/3x Thanks for the help.
March 14, 2009 by Jen

math
solve quadratic equation by factoring 5x^2-6x-11=-3
April 18, 2010 by jerson

Find two consecutive integers, the sum of whose squares is 1 more than twelve times the larger. (Please provide the steps/explanation for solving this problem)
March 29, 2009 by purpletree

college geomrtry
What are the differences between linear and quadratic equations? How are these differences displayed in a graph? Write a brief scenario that can be modeled with a linear equation. Summarize a situation modeled by a quadratic equation. Are there equations that are neither ...
February 28, 2010 by Anonymous

math
factoring to solve quadratic equation 5x^2=16x+45
April 26, 2011 by lori

math
-x squared -2x +4 solve quadratic equation by factoring
February 21, 2013 by michell

Math - Algebra
A. Solve the following quadratic equations. Make sure to show all your work. Do not use any method (e.g. factoring, completing the square, quadratic formula, graphing) more than twice. Use the graphing method at least once. 1. 3x+2 + 11x -20 =0 2. x2 + 3x -4 =0 3. 3x2 - x - 1...
January 9, 2007 by Angela Again!

Algebra
Solving quardratic equations using factoring. 2X^2+2X-4=0 The book says the answer is -2,1. I got the -2,1 but not in the order of -2,1. I used FOIL to solve. When I use -2,1 I don't can not solve. When I use 1,-2. I can solve. I am not clear.
May 23, 2008 by G

math
How to solve this quadratic equation by factoring? 10x2 - 19x -15 = 0
January 20, 2009 by JoAnn

math
1.Use factoring to solve the quadratic equation. x2 - 64 = 63x
March 10, 2010 by Anonymous

Alg 1
Solving quadratic equations: What is the radius of the largest circular quilt that can be made with an area less than or equal to 70 ft^2? Round your answer to the nearest tenth of a foot if necessary. Please solve and explain. Thanks
April 6, 2013 by Jane

Algebra
Solving Linear Equations and Inequalities Solve by eliminating x (this is solving 3 linear equations) then substitute to the other two equation x + y + 5z =2 (1) 4x - 3y + 5z =3 (2) 3x - 2y + 5z=1 (3) my teacher gave me the answer she said the solution set for this should be...
April 25, 2016 by Clyde

Algebra 2
Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 I'm having trouble solving this problem.
December 1, 2014 by Michelle

Math
A: Solve the following equation: k2 + 4k = 0 A: By factoring B: By using the quadratic formula
January 9, 2010 by Anna

Math
Use factoring to solve the quadratic equation. 5x2 - 25x + 30 = 0
March 10, 2010 by Anonymous

Math
Solve the equation by first factoring the quadratic expression. 1. x2+4.5x=0 2. x2-9x=0 3. -x2+10x=0
February 23, 2013 by Enrique

Math
Solve the equation by first factoring the quadratic expression. 1. x2+4.5x=0 2. x2-9x=0 3. -x2+10x=0
February 23, 2013 by Enrique

Algebra 2
Solving Quadratic Systems 2x^2+5y^2=53 4x+y^2=17 Please show work I'm having trouble solving it.
November 29, 2014 by Alicia

Algebra 2
Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 Please show work I'm having trouble solving it
December 1, 2014 by Alicia

Algebra 2
Solving Quadratic Systems x^2+y^2=20 x^2-6y=28 PLEASE SHOW WORK I'M HAVING TROUBLE SOLVING IT
December 1, 2014 by Alicia

I need to solve a pair of equations where one is linear and the other is quadratic. 2x2 + 3xy + y2 = 0 3x + y = 2 last 2 in 2x2 is square root two, same after y2. help please!!!!!!!!!!!!!!!
November 21, 2012 by Saud

Algebra I DONT KNOW HOW TO DO 3 VARIABLES
Solving Linear Equations and Inequalities Solve by eliminating x (this is solving 3 linear equations) then substitute to the other two equation x + y + 5z =2 (1) 4x - 3y + 5z =3 (2) 3x - 2y + 5z=1 (3) my teacher gave me the answer she said the solution set for this should be...
April 25, 2016 by Clyde

Math
How would I expand this two quadratic equations and find a & x for both of them? Here are my equations: y=a(x+1.5)^2+0 y=a(x+2)^2+1.5
November 28, 2014 by Alex

Algebra 2
Solving Quadratic Systems 16x^2-9y^2=144 y=9-x^2 Please show work I'm having trouble solving it.
November 29, 2014 by Alicia

MATH
can someone explain how an quadratic equation with factoring and give an example,PLEASE!
May 1, 2010 by LAUREN

MATH
can someone explain how an quadratic equation with factoring and give an example,PLEASE!
May 1, 2010 by LAUREN

Find the solutions to each quadratic by factoring x^2+3x-18=0 3x^2-9x=o x^2-10x+21=0 5x^2+30x+45=0
February 26, 2009 by jessica

Algebra
A monic quadratic is a quadratic in which the coefficient of the quadratic term is 1. For example, r^2 - 3r + 7 is a monic quadratic, but 3t^2 - 3t + 1 is not. A teacher writes a monic quadratic on the board. Joanie copies the quadratic onto her paper, but writes down the ...
June 3, 2015 by XXX

Algebra
A monic quadratic is a quadratic in which the coefficient of the quadratic term is 1. For example, r^2 - 3r + 7 is a monic quadratic, but 3t^2 - 3t + 1 is not. A teacher writes a monic quadratic on the board. Joanie copies the quadratic onto her paper, but writes down the ...
June 4, 2015 by XXX

Math
(Factoring a sum or difference of cubes) and (solving a polynomial equation). 2x^3+2=0
January 31, 2011 by Mike

Math
Solve the equation by factoring, by finding square roots, or by using the quadratic formula. 3(x+4)^2= -27
November 14, 2011 by Lilly

Chemistry
When solving Hess law problems,do we need to use all the equations given to get the Htotal or just choose the relevant equations that are related to the final equation required? Let's say there r 5 equations given,but the relevant equations are 3 only ,so we can neglect the ...
March 23, 2012 by Meenaakshi

Math (Solving Equations)
Find all solutions (answers should be given in simplified form). Some answers may involve the number i. *I will use lowercase l to represent absolute value lines.* 3 lx-1l + 4 = 19 We've never really worked with absolute value in solving equations before. Do I distribute the 3...
May 17, 2015 by Leah

Math
I need help solving this equation using the Factoring Completely method. X⁴-x³
February 1, 2013 by Phil

Math 4 (Count Ibilis)
Solve by factoring: One of the solutions to the quadratic equation 2x^2 - 9x – 5 is -1/2. What is the other solution? 2x^2 - 9x – 5 = (2x + 1)(x - 5) So, it's x = 5.
January 30, 2007 by Margie

math
A: Solve the following equation: k2 + 4k = 0 A: By factoring B: By using the quadratic formula D: Do the results in A, B, differ from each other? Why or Why not?
February 28, 2010 by jillian

Math
9(x+2)(x+1)-2(x+2)-4(x+1)=0 I'm in the middle of solving an equation. I know that you have to FOIL but how did they get 9(x^2+3x+2)-(4x+4)=0 ? I thought you distribute the 9 through (x+2)(x+1). and why is it (4x+4) instead of (4x-4) because -4 x 1 = -4 .... Please help me ...
June 9, 2013 by Beth

Math 3
Solve by factoring: One of the solutions to the quadratic equation x^2 - 13x + 30 is 3. What is the other solution? Is it:(x+3) If 3 is a solution, then the quadratic contains a factor (x-3). The other factor is thus (x-10), and it follows that the other root is x = 10. thanks...
January 30, 2007 by Margie

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