Search: math(factoring by completing)

Number of results: 186,434

math(factoring by completing)
hi. - I am not sure how to do this.- You have to factor completley. 5y^8-125
Thursday, February 1, 2007 at 7:40pm by Alex

Algebra Question
Factoring is quickest and best if simple integer factors are possible The quadratic equation and completing the square are the same thing as far as I am concerned. This is the way to go if you have a calculator handy and the numbers are too nasty for factoring. Use a graph if ...
Thursday, January 29, 2009 at 6:53pm by Damon

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?
Tuesday, February 5, 2008 at 11:33am by Marysvoice

Algebra Quadratic Equations
Completing the square is not the easiest way to solve quadratic equations; its strength lies in the fact that the process is repetitive and predictable. Here is the best news: completing the square ALWAYS (SAY ALWAYS) will work, unlike the factoring method, which of course, ...
Friday, February 15, 2008 at 7:31am by Guido

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..
Thursday, November 10, 2011 at 1:23am by Linda

Math-Factoring
Hey I need help factoring 5x^4-180x^2. I'm used to factoring with three numbers, and not two. How would you do just two like this? Thanks
Monday, January 19, 2009 at 6:58pm by Greg

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.
Monday, December 5, 2011 at 6:04am by Anonymous

Algebra
Which is the easiest way to figure a quadratic equation; graphing, quadratic formula, completing a square and factoring?
Monday, February 4, 2008 at 8:13am by Marysvoice

math (Reiny please)
There are 3 common ways to solve quadratic equations 1. by factoring --- only works for some 2. completing the square --- works really well if it starts with 1x^2 and the middle term is even 3. the quadratic formula --- always workd for x^2 + 2x - 7=0 I would use "...
Tuesday, April 9, 2013 at 8:11pm by Reiny

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? f(x)=x^2-9x 11. ...
Wednesday, November 19, 2008 at 6:29pm by Eliza

Pre-Calc-Please check my answer
Alison, I am sure Sheila was trying to do it by completing the square. Note taking half of the coef. of x and squaring it. Factoring is too easy.
Tuesday, September 6, 2011 at 8:12pm by Damon

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?
Thursday, January 29, 2009 at 6:53pm by pj

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?
Tuesday, February 7, 2012 at 6:53pm by debby

GR.10 MATH.
i want to noe what is the DIFERENCE between partial and complete factoring. an e.g of a partial factoring problem is y=2x^2+8x+5 an e.g of complete factoring is y=x^2+3x-10
Monday, April 27, 2009 at 12:53am by nini

Algebra Question
If the numbers are reasonably small the first thing I try is factoring If the coefficient of the square term is 1, and the middle term is even, then completing the square works great For all other cases I simply use the quadratic formula, knowing that it always works. One of ...
Thursday, January 29, 2009 at 6:53pm by Reiny

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?
Sunday, March 28, 2010 at 5:42pm by GGIFT

Math - factoring
Solve by factoring: 1.) x^2 - x - 12 = 0
Thursday, September 9, 2010 at 7:06pm by Anna

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?
Monday, January 12, 2009 at 11:00pm by Paradise

math
−2t^2 + 12t = 2(-t^2 +6t) That is where the 6 came from I got the 9 and the 18 in the process of completing the square I suggest you review the subject of completing the square in quadratic equations.
Thursday, November 20, 2008 at 3:07am by drwls

Algerbra
1. Factoring. Only special ones factor 2. Completing the square, works every time 3. the Quadratic Formula, works every time.
Tuesday, May 13, 2008 at 5:29pm by Reiny

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 completing the square...
Wednesday, May 27, 2009 at 6:26am by Amy

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 completing the square...
Tuesday, May 26, 2009 at 9:39pm by Amy

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.
Monday, February 27, 2012 at 5:25pm by Rose

math - Editorial
I wondered the same thing, Reiny. I also Googled factoring to make sure that I was right -- and found several excellent sites that explain factoring.
Tuesday, January 15, 2008 at 1:48pm by Ms. Sue

factoring
I cannot figure these out.Can someone Factor completely: 3x2 - x - 4 I suppose this is actually 3x^2 -x-4 If so: (3x-4)(x+1) Now I'd like you to look at the following website: http://tutorial.math.lamar.edu/AllBrowsers/1314/Factoring.asp
Wednesday, May 23, 2007 at 10:00am by Jojo

Math
Im having problem with this. It's for the factoring trees. I know it's 4×21=84, i tried that, but it doesn't fit in the factoring trees.
Tuesday, June 26, 2012 at 9:23pm by Losa

Math
Do what I said. Use the quadratic formula or completing the square. You can search the net for many math sites that easily teach you about the quadratic formula and/or completing the square.
Tuesday, February 19, 2008 at 7:32pm by Guido

Algebra 2
Solve by completing the square. a² - 2√(3a) + 2 = 0 Solve for x. I don't know if you can use completing the square for this problem. ax^n + b = 0
Wednesday, December 7, 2011 at 1:33am by Solve by completing the square

math?? factoring
100N/m d^2 - 57.3d= 0 sigh...I can't figure out how to find d know it's factoring but as to actual number to factor out...not so sure. Thanks
Monday, April 14, 2008 at 11:57am by ~christina~

Math: Factoring
I'm having a hard time factoring polynomials, especially 3rd degree. -x^3+2x^2+4x-8 -x^3-5x^2+20x+12 I don't know how to begin. I thought long division, but what would I divide by?
Sunday, December 2, 2007 at 4:37pm by Amelie

Factoring
x2(squared)-4x+4 I would factor this into (X - 2)(X - 2) If you don't know the rules for factoring, post, and we can show you how to do it. I don't know the factoring rules. My algebra teacher couldn't teach. Hi! Very nice site! Thanks you very much! BLFXJpr3LbWyHw...
Wednesday, September 20, 2006 at 5:01pm by Amanda

MORE MATH
What is the factoring by grouping? When factoring a trinomial, why is it necessary to write the trinomials in four terms? I will be happy to critique your thinking on this. I do not understand to even answer it? http://schools.spsd.sk.ca/mount/hoffman/Math%2020/factoring/Easy%...
Tuesday, June 14, 2005 at 11:05pm by jenn

12th grade - Math
1. Factor by completing the square or the quadratic formula. However, factoring by trial and error is faster, noting that only a few rational factors are possible, namely x±1, x±2, x±3, x±4, x±6. 2. note that x is a common...
Wednesday, September 1, 2010 at 8:26am by MathMate

Algebra
Steps to factoring this x^3 - 8 ? I'm only used to factoring out the x when the x is in the equation like x^ + x + x
Sunday, October 3, 2010 at 6:45pm by Anonymous

math-factoring
Sal Khan does a good job to work through one of your kind of problems http://www.khanacademy.org/math/algebra/polynomials/v/factoring-trinomials-with-a-non-1-leading-coefficient-by-grouping
Wednesday, March 14, 2012 at 8:10pm by Reiny

Algebra Quadratic Equations
I find the quadratic equation x = [-b +/- sqrt(b^2-4ac)]/2a the easiest to use, unless a way of factoring is obvious. It is derived by completing the square, after all. It tells you the number of real roots right away (from the value of b^2 - 4ac). The hard part is memorizing ...
Friday, February 15, 2008 at 7:31am by drwls

FACTORING HELP ASAP
i dont know how this works.. but im helping my friend with some factoring and i have a few questions
Saturday, February 11, 2006 at 6:08pm by Cait

Sally
I have a factoring question; what is 8a^2-8a-30? I've been working on this for a while and I think I understand factoring, but I'm not getting the right answer, which is supposed to be 2(2a-5)(2a+3). Any help would be so appreciated! :)
Tuesday, September 23, 2008 at 6:50pm by Math

Math(factoring)
I need help with factoring trinomials completely. My teacher's example is: 2x^2-12x+18 2(x^2-6x+9) 2(x-3)(x-3) I need help with: 6x^2-26x-20 I just can't get this stuff so if you can please help me I'd greatly appreciate it.
Friday, February 29, 2008 at 7:34pm by Nick

Factoring- precalc
im stuck on factoring (x-1)(2x^3+13x^2+8x-35) do i use synthetic division? if so what zero? thnks.
Monday, October 29, 2012 at 9:58pm by Rebekah

Precalc factoring
im stuck on factoring (x-1)(2x^3+13x^2+8x-35) do i use synthetic division? if so what zero? thnks.
Monday, October 29, 2012 at 9:00pm by Rebekah

Algebra
x^2 - 4x + 17 = 29 x^2 - 4x - 12 = 0 1. by factoring: (x-6)(x+2) = 0 x = 6 or x = -2 2. by completing the square: x^2 - 4x + ___ = 12 + ____ x^2 - 4x + 4 = 12 + 4 (x-2)^2 = 16 x-2 = ± 4 x = 2 ± 4 = 6 or -2 3. by formula x = (4 ± √(16-4(1)(-12))/2...
Sunday, April 26, 2009 at 2:05pm by Reiny

Factoring
Is this a different problem? You should be factoring -3p^2+84p-288 if it's the same one as before. Start by taking out a common -3.
Sunday, November 25, 2007 at 7:20pm by Michael

algebra
formula: x = (-8 ± √72)/2 = (-8 ± 6√2)/2 = -4 ± 3√2 completing the square x^2 + 8x = 2 x^2 + 8x + 16 = 2 + 16 (x+4)^2 = 18 x+4 = ± √18 = ±3√2 x = -4 ± 3√2 notice that ...
Monday, January 3, 2011 at 9:10pm by Reiny

math (factoring quadratic trinomials)
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
Tuesday, March 10, 2009 at 9:35pm by Tiffany

Use completing the square to...
Use completing the square to describe the graph of the following function support your answer graphically. f(x)=-2x^2+4x+1
Tuesday, March 19, 2013 at 11:44am by Jenn

Math
2x(x+3) = 0 Is there a way to solve that using the below methods? Substitute zero for f(x) and find the roots of the resulting equation, or graph the function and determine the x-intercepts of the graph. Finding the roots of a single variable equation may involve factoring. ...
Monday, December 5, 2011 at 5:15pm by -Untamed-

alegbra
Joe ignored the 585 on the Right Side (x-5)(x+19)=585 x^2 + 14x - 95 = 585 x^2 + 14x + .... = 680 x^2 + 14x + 49 = 680 + 49 using completing the square because of the nice numbers (x+7)^2 = 729 x+7 = ±27 x = 20 or x = -34 which could have been found also by factoring (x...
Thursday, April 29, 2010 at 1:00am by Reiny

Math
That is a big subject, especially for cubics and higher order polynomials. I recommend that you start by reading this: http://tutorial.math.lamar.edu/Classes/Alg/Factoring.aspx
Monday, February 1, 2010 at 1:06am by drwls

math
6. Solve by factoring. m² + 8m + 7 = 0 (1 point)8, 7 –7, 1 *–7, –1 7, 1 7. Solve by factoring. n² + 2n – 24 = 0 (1 point)–12, 2 –2, 12 *–6, 4 –4, 6 Please Help
Tuesday, February 26, 2013 at 4:12pm by James

algebra
FYI-"algabra" is not how you spell algebra. 3x^2- 12x - 24 = 0 This equation cannot be solved by factoring. Use the Quadratic Formula, or the method of completing the square. Here is the quadratic formula. x = (-b +- (sqrt(b^2 - 4ac)))/2a 3x^2 - 12x - 24 = 0 a = 3, b...
Thursday, February 3, 2011 at 1:02pm by helper

Algebra Quadratic Equations
Completing the square is a variation, I suppose, of factoring. The idea is to make the number, which isn't factorable (is that a word?) into one that can be factored. For example, X^2 + 4x + 4 can be factored into (x+2)^2. So if we had an equation, such as X^2 + 4x + 3, we...
Tuesday, February 5, 2008 at 11:33am by drbob222

Calc
Don't worry about setting it equal to 0. Since we're factoring, it is equal to 0. (You can write that = 0 in your work if you want.) That's difficult to continue factoring. Here's a hint: 4 x 24 is 96.
Sunday, November 25, 2007 at 4:11pm by Michael

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].
Monday, January 31, 2011 at 7:15pm by Mike

Math
these questions have been 'fudged' so that they can be done mentally by using basic factoring techniques. for the first 7.7^2-2.3^2 , I see the difference of squares = (7.7 + 2.3)(7.7-2.3) = 10 (5.4) = 54 the last one uses 'common factoring' 43*56 + 43*44 = 43(...
Sunday, March 7, 2010 at 2:35pm by Reiny

Quadratic Equations
I do not see an easier method except factoring trial and error. For this particular problem, you will probably get the answers by trial factoring quite easily. Remember that this is a cubic equation, which actually has a solution formula more complicated than the above. There ...
Thursday, April 14, 2011 at 1:03pm by MathMate

factoring
Factor completely: 2x2 – 50 To indicate x squared, use this notation — x^2. 2x^2-50 = 2(x^2-25) You should be able to continue the factoring with the site that Lance has given you. I hope this helps. Thanks for asking.
Wednesday, May 23, 2007 at 9:59am by Jojo

algebra
When page be open click: 2a^2-3a=-5 Then option: Solve by Factoring(includes Factoring by Grouping) and cilck option: solve it!
Tuesday, July 19, 2011 at 2:50pm by Bosnian

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...
Tuesday, January 9, 2007 at 2:09pm by Angela Again!

DQ
What is factoring by grouping? When factoring a trinomial by grouping, why is it necessary to write the trinomial in four terms?
Sunday, February 22, 2009 at 7:38pm by Bo

Algebra
What is factoring by grouping? When factoring a trinomial by grouping, why is it necessary to write the trinomial in four terms?
Sunday, February 22, 2009 at 3:57pm by Bo

factoring
The first step in factoring is to move everything to one side. 6d^2 + 2d = 10d + 35 6d^2 - 8d - 35 = 0. However, I cannot find real roots for this equation. Are you sure you typed it correctly?
Saturday, January 1, 2011 at 8:38pm by Marth

Completing the square
Please show the procedure for answering this quadratic equation using the completing the square method: x^2+14x+98 I think i understand the basics of the method, but in this particular question I'm finding it hard to use the appropriate factors of 98 - 7 and 14 - to ...
Friday, May 20, 2011 at 12:27am by Barbie

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. y^2+10y i dont know ha...
Monday, May 21, 2007 at 11:32am by Christian

ALGEBRA
Quadratic formula: In my opinion, this is the most general method, and likely the best overall. It will always work, and if you memorize the formula, there is no guessing about how to apply it. The formula allows you to find real and complex solutions. Graphing: graphing the ...
Sunday, March 28, 2010 at 5:42pm by Rick

SMART Goals
Rewrite the following goal to make it S.M.A.R.T I want to do well in school this year. -I want to get As and Bs in all my subjects during my 10 month school year and be on the Role of Distinction. I will spend 2 hours everyday after school from 3-5 completing my homework and ...
Tuesday, December 29, 2009 at 5:56pm by Jon

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 equation as answer=(...
Sunday, August 12, 2007 at 11:09pm by Marissa

Algebra 2
Steve, thank you for showing me again. Yes, I couldn't quite get it last time. I understood factoring out the 1/3 on the left side. I understood factoring the denominator on the right side. After that I have trouble. Could you please show it to me again with more steps in ...
Thursday, January 10, 2013 at 4:30pm by Bart

Factoring
I wouldn't factor it to get the solutions. I would use the quadratic formula. p= (-84 +- sqrt (7056+2345)/-6 p= (-84 +- 102.53)/-6 p=31 or p=-3.09 Now factoring.. (3p-93)(p+3.09) check that, of course I rounded in the quadratic...
Sunday, November 25, 2007 at 7:14pm by bobpursley

math
Solve by completing the square: x^2=5x+2
Tuesday, June 8, 2010 at 11:11pm by amy

Math
Solve by completing the square: x^2=5x+2
Tuesday, June 8, 2010 at 5:12pm by Jasmyn

math
x^2-6x-7=0 Completing the square need help
Friday, May 28, 2010 at 2:01am by Carol

math
looks like it does not factor, so... in this case I would complete the square. x^2 + 6x + 9 = 24 + 9 (x+3)^2 = 33 x+3 = ± √ 33 x = -3 ± √33 If a quadratic does not factor and the first term is 1x^2 with an even number as the x coefficient, ...
Monday, December 19, 2011 at 7:47pm by Reiny

Math
Solve by completing the square, 8x^2+4x-4=0
Friday, March 9, 2012 at 12:45pm by Marie

Math
Solve by completing the square x^2+4x-21=0 Help how do I do this???
Tuesday, November 22, 2011 at 10:40pm by Allison A

math
2x^2+x-28=0 Solve by completing the square
Thursday, December 3, 2009 at 11:17pm by kaitlin

math
solve the equation by completing the square: x^2-9x-2=0
Sunday, January 4, 2009 at 3:07pm by princess

algebra
The 7r term disappears in the factoring process. The second order polynomials in the numerator and denominator were both factored by Damon. You may need to review the factoring process; it is an important part of algebra. You can multiply the two monomial factors back together...
Thursday, December 23, 2010 at 4:33pm by drwls

Math: Factoring
First find one root by trial and error. Call it a. Then divide (x-a) into the cubic using long division to get a quadratic equation. Get the roots of that by the usual method. For the equation -x^3+2x^2+4x-8, one of the roots is x=2. Divide (x-2) into -x^3+2x^2+4x-8, and you ...
Sunday, December 2, 2007 at 4:37pm by drwls

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 ...
Wednesday, August 11, 2010 at 5:14pm by Ka'Sandra

Grammar
1. Select the sentence which is correctly punctuated: A) He has 2 major hurdles to accomplish before becoming a doctor: completing his residency and passing the state exam. B) He has 2 major hurdles to accomplish before becoming a doctor; completing his residency and passing ...
Wednesday, December 12, 2012 at 6:12pm by Marie

math
You can factor it out like this. 120 / \ 2 60 / \ 2 30 / \ 2 15 / \ 3 5 by factoring out to just prime number you can see which numbers 120 is divisible by. Also is you multiply some of these factors together you can find other factors. oh and don't forget the number 1 and...
Sunday, November 25, 2012 at 8:04pm by Chrys

math 117
Sometimes the factors just jump out at you , such as in x^2 + 7x + 12 = 0 Usually, if the coefficients are single digits, it only takes a few seconds to see if it factors. If the coefficients are 2 digits or more, I do a quick calculation of the determinant b^2 - 4ac If that ...
Monday, December 5, 2011 at 6:04am by Reiny

Math
Transform the equation by completing the square: y^2 + 2x - 6y - 7 = 0
Thursday, March 8, 2012 at 10:33pm by Joe

Math
Solve the equaton by completing the square. 4x^2-8x-3=0
Wednesday, August 3, 2011 at 6:04am by Ashley

math
solve for x x^2+45=6x. is this like completing the square
Tuesday, April 6, 2010 at 2:07am by jen

Math: Factoring
yes
Thursday, September 15, 2011 at 8:56pm by Ashley

math
(1/8)-(1/8)2+(1/8)3 = (1/8)(1-2+3) by factoring.
Tuesday, January 25, 2011 at 10:32pm by Marth

math
FACTORING
Wednesday, March 17, 2010 at 10:06pm by Anonymous

math
Are you factoring?
Wednesday, January 7, 2009 at 10:05pm by Chopsticks

math-factoring
thanks!
Thursday, November 6, 2008 at 6:08pm by hailey

Math(factoring)
6(y^2-4) 6(y-2)(y+2)...
Friday, February 29, 2008 at 7:34pm by Jake1214

math,correction
Is this correct now. Problem #1 solve by completing the square. 2x^2+8x+3=0 My answer: x=-2 +/- sqrt (5)/(2) Problem #2 solve by using the quadratic formula 5x^2+3x+1=0 My answer: No solution are defined. You are not completing the square. 2x^2+8x+3=0 x^2 + 4x =- 3/2 now ...
Sunday, April 22, 2007 at 1:29am by jasmine20

math
CONSTRUCT BY COMPLETING D SQUARE METHOD:-5 ND ¾
Saturday, January 26, 2013 at 2:17pm by NELLI ABUBAKAR

Math help NOW!!!!! Plz
Solve by completing the square : 2x^2= 9x+5
Wednesday, December 12, 2012 at 2:38pm by David

math
solve by completing the square x^2-3x=4 please show work
Sunday, December 9, 2012 at 5:34pm by timothy

math
2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.
Thursday, September 20, 2012 at 7:52am by Jack

math
2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.
Thursday, September 20, 2012 at 7:50am by Jack

math
x^2=8x-9 solve by completing the square to obtain exact solutions
Wednesday, September 12, 2012 at 12:47pm by amber

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