prove that (m-n-2) [(m+n)^2 + (-n+2)^2 + (-2-m)^2] = 2(m^3 - n^3 -8 - 6mn)

 

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vijay89
April 1, 2017, 11:17 a.m.

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Mohit Passi
April 1, 2017, 10:41 p.m.

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