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Yadira Charles
Mathematics
8 July, 00:20
Simplify the sum 4/m+9 + 5/m2 - 81
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Marie
8 July, 00:29
0
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)
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Hillary Hunter
8 July, 00:47
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The answer to the question is 4m-31 / (m-9) (m+9)
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