SOLUTION: Solve: (a-b)^2/a^2-b^2. Please help me to simplify.

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Question 201978: Solve: (a-b)^2/a^2-b^2. Please help me to simplify.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%28%28a-b%29%5E2%29%2F%28a%5E2-b%5E2%29 Start with the given expression.


%28%28a-b%29%28a-b%29%29%2F%28a%5E2-b%5E2%29 Expand the numerator


%28%28a-b%29%28a-b%29%29%2F%28%28a-b%29%28a%2Bb%29%29 Factor the denominator


%28highlight%28%28a-b%29%29%28a-b%29%29%2F%28highlight%28%28a-b%29%29%28a%2Bb%29%29 Highlight the common terms.


%28cross%28%28a-b%29%29%28a-b%29%29%2F%28cross%28%28a-b%29%29%28a%2Bb%29%29 Cancel out the common terms.


%28a-b%29%2F%28a%2Bb%29 Simplify


So %28%28a-b%29%5E2%29%2F%28a%5E2-b%5E2%29=%28a-b%29%2F%28a%2Bb%29