
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
September 26th, 2010, 10:51 AM  #1 
Member Joined: Sep 2008 Posts: 97 Thanks: 0  Factoring Polynomials:
I am just starting to learn about factoring polynomials and plugged this problem into mathway.com m(mn)2n(nm) I've figured out most of the steps but i'm having trouble with the final answer. "In this problem and 21=1, so insert 2 as the right hand term of one factor and 1 as the righthand term of the other factor. (m+2n)(mn)" This is as far as i've gotten: How do i get the final answer? Can someone explain it a little more? 
September 26th, 2010, 11:04 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 465 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. 
September 26th, 2010, 01:55 PM  #3 
Member 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!


Tags 
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 