SOLUTION: x+7/X^2-49

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: x+7/X^2-49      Log On


   

Question 187779This question is from textbook college mathematics 1
: x+7/X^2-49 This question is from textbook college mathematics 1

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%2B7%29%2F%28x%5E2-49%29 Start with the given expression.


%28x%2B7%29%2F%28%28x%2B7%29%28x-7%29%29 Factor the denominator.


highlight%28x%2B7%29%2F%28highlight%28%28x%2B7%29%29%28x-7%29%29 Highlight the common terms.


cross%28x%2B7%29%2F%28cross%28%28x%2B7%29%29%28x-7%29%29 Cancel out the common terms.


1%2F%28x-7%29 Simplify


So %28x%2B7%29%2F%28x%5E2-49%29=1%2F%28x-7%29 where x%3C%3E-7 or x%3C%3E7