
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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December 6th, 2010, 06:06 AM  #1 
Newbie Joined: Dec 2010 Posts: 1 Thanks: 0  Quick problem
I'm trying to help my g/f with her homework, but to be quite frank I've forgotten so much of this over the years. She is to simplify each rational expression. I've cruised through it until this point. Code: x^3125/x^225 Code: x^25/x I'm of the personal opinion that this problem cannot be further simplified but I want to make sure since she's pushing passing the course (I should have helped sooner, I'm a bad b/f!) Thanks all and any. Q 
December 6th, 2010, 06:10 AM  #2 
Global Moderator Joined: Nov 2009 From: Northwest Arkansas Posts: 2,767 Thanks: 5  Re: Quick problem
Factor the top as a difference of cubes: x^3125= (x5)(x^2+5x+25) the bottom as a difference of squares: x^225 =(x5)(x+5) cancel the common factor (x5) 
December 6th, 2010, 03:22 PM  #3 
Member Joined: Nov 2010 Posts: 34 Thanks: 0  Re: Quick problem
this is the solution 

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