SOLUTION: simplify by removing factors of 1. n^2-81/(n+9)^2

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Question 380669: simplify by removing factors of 1.
n^2-81/(n+9)^2

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
simplify by removing factors of 1.
n^2-81/(n+9)^2
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= [(n-9)(n+9)]/(n+9)^2
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= [(n+9)/(n+9)]
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= [1][(n-9)/(n+9)]
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= (n-9)/(n+9)
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Cheers,
Stan H.

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