
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
October 8th, 2018, 11:43 AM  #1 
Senior Member Joined: Apr 2017 From: New York Posts: 119 Thanks: 6  rational expression simplification
Hi everyone, I couldn't do this: (x^2y^24y4) / (x^2y^24y+4) any idea? 
October 8th, 2018, 01:52 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,640 Thanks: 625 
Add and subtract 8 to the numerator. Get 1 +8/denominator.

October 8th, 2018, 04:56 PM  #3 
Senior Member Joined: Apr 2017 From: New York Posts: 119 Thanks: 6 
Did you mean 1  8/denominator? because if I add and subtract 8 what I get on numerator is exactly the same as denominator 8 
October 8th, 2018, 07:12 PM  #4  
Senior Member Joined: May 2016 From: USA Posts: 1,206 Thanks: 494  Quote:
$\dfrac{z  a}{z + a} = \dfrac{z  a + 0}{z + a} = \dfrac{z  a + 2a  2a}{z + a} = \dfrac{z + a  2a}{z + a} = \dfrac{z + a}{z + a}  \dfrac{2a}{z + a}= WHAT?$ What is the relevance of this general idea to your specific problem? Last edited by JeffM1; October 8th, 2018 at 07:21 PM.  
October 9th, 2018, 02:22 PM  #5 
Global Moderator Joined: May 2007 Posts: 6,640 Thanks: 625  

Tags 
expression, rational, simplification 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Rational Expression  scsims  Algebra  1  April 8th, 2015 09:03 AM 
Rational expression  App  Algebra  2  September 8th, 2014 08:40 PM 
A rational expression  guru123  Algebra  2  September 5th, 2013 08:02 PM 
Logaritm expression simplification  b2kguga  Calculus  1  July 23rd, 2011 03:41 PM 
Curve integral  expression simplification  honzik  Real Analysis  1  December 26th, 2009 04:16 PM 