daaareypegrace
daaareypegrace
22-05-2016
Mathematics
contestada
Simplify the sum 4/m+9 + 5/m2 - 81
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apologiabiology
apologiabiology
22-05-2016
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)
Answer Link
Meochi
Meochi
18-06-2018
The answer to the question is 4m-31/(m-9)(m+9)
Answer Link
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