SOLUTION: x^2 + x -20/x^2 -16 answer:x+5/x+4 why is the answer x+5/ x+4 anyone can give a full break down why

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Question 193585: x^2 + x -20/x^2 -16

answer:x+5/x+4
why is the answer x+5/ x+4 anyone can give a full break down why
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 + x -20/x^2 -16
answer:x+5/x+4
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x%5E2+%2B+x+-+20+=+%28x%2B5%29%2A%28x-4%29
x%5E2+-+16+=+%28x%2B4%29%2A%28x-4%29
The (x-4) cancels.