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Simplify the sum 4/m+9 + 5/m2 - 81
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Simplify the sum 4/m+9 + 5/m2 - 81

User Steve Waring
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2 Answers

5 votes
The answer to the question is 4m-31/(m-9)(m+9)
User Zmag
by
8.8k points
5 votes
factor
m^2-81=(m-9)(m+9)
multiply other equation by (m-9)/(m-9)

4(m-9)/(m^2-81)+5/(m^2-81)
(4(m-9)+5)/(m^2-81)
(4m-36+5)/(m^2-81)
(4m-31)/(m^2-81)
User Ezanker
by
7.8k points
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