qwertylol12345 qwertylol12345

03-02-2019
Mathematics

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Bring the fraction a/a-4 to a denominator of 16-a^2

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mathecoach mathecoach

03-02-2019

Answer:

a / (a - 4) = a(a + 4) / ((a - 4)(a + 4)) = (a^2 + 4a) / (a^2 - 16) = -(a^2 + 4a) / (16 - a^2)

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