SOLUTION: Simplify if possible: x^2-4x-21 _________ x^2+2x-63

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Question 251443: Simplify if possible:
x^2-4x-21
_________
x^2+2x-63

Answer by oberobic(2304)   (Show Source): You can put this solution on YOUR website!

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Factoring the numerator:

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Factoring the denominator:

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The '(x-7)' factors cancel.
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