SOLUTION: x^2-64/x+8

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Question 557579: x^2-64/x+8
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%28x%5E2-64%29%2F%28x%2B8%29 Start with the given expression.


%28%28x%2B8%29%28x-8%29%29%2F%28x%2B8%29 Factor the numerator using the difference of squares formula


%28highlight%28%28x%2B8%29%29%28x-8%29%29%2F%28highlight%28%28x%2B8%29%29%29 Highlight the common terms.


%28cross%28%28x%2B8%29%29%28x-8%29%29%2F%28cross%28%28x%2B8%29%29%29 Cancel out the common terms.


x-8 Simplify


So %28x%5E2-64%29%2F%28x%2B8%29 simplifies to x-8


In other words, %28x%5E2-64%29%2F%28x%2B8%29=x-8 for all values of x except x%3C%3E-8

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