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21-06-2017
Mathematics

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(5m 3 + 3mn 2) + (-7m 2 n + mn 2 - n 3) - (mn 2 + 2m 3)

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texaschic101 texaschic101

21-06-2017

5m^3 + 3mn^2 - 7m^2 + mn^2 - n^3 - mn^2 - 2m^3
combine like terms
3m^3 - 7m^2 + 3mn^2 - n^3

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