My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum

LinkBack Thread Tools Display Modes
September 26th, 2010, 10:51 AM   #1
Joined: Sep 2008

Posts: 97
Thanks: 0

Factoring Polynomials:

I am just starting to learn about factoring polynomials and plugged this problem into


I've figured out most of the steps but i'm having trouble with the final answer.

"In this problem and 2-1=1, so insert 2 as the right hand term of one factor and -1 as the right-hand term of the other factor.


This is as far as i've gotten:

How do i get the final answer? Can someone explain it a little more?
cafegurl is offline  
September 26th, 2010, 11:04 AM   #2
Senior Member
MarkFL's Avatar
Joined: Jul 2010
From: St. Augustine, FL., U.S.A.'s oldest city

Posts: 12,155
Thanks: 463

Math Focus: Calculus/ODEs
Re: Factoring Polynomials:

If you've got:

m(m - n) - 2n(n - m)

and you want to factor it, use (m - n) = -(n - m) to rewrite it as:

m(m - n) + 2n(m - n)

then, factor out the (m - n) common to both terms as follows:

(m - n)(m + 2n)

and it is now factored.
MarkFL is offline  
September 26th, 2010, 01:55 PM   #3
Joined: Sep 2008

Posts: 97
Thanks: 0

Re: Factoring Polynomials:

This is interesting. ... I think i'll try this one out on some of my problems. Thank you!
cafegurl is offline  

  My Math Forum > High School Math Forum > Algebra

factoring, polynomials

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
help factoring polynomials J.Xavier Algebra 1 May 5th, 2013 04:29 PM
Factoring Polynomials IDoNotLikeMath Algebra 4 July 10th, 2012 08:59 PM
Factoring Polynomials Pumpkin99 Algebra 1 October 6th, 2011 07:58 PM
Factoring 3rd degree polynomials jokerthief Algebra 5 October 6th, 2007 02:23 PM
Factoring Polynomials BrandonFlorida Real Analysis 3 May 26th, 2007 11:14 AM

Copyright © 2017 My Math Forum. All rights reserved.