If a+b+c =0 finf the value of (-2a)3 + (-2b)3 + (-2c)3 - 3(-2a) (-2b) (-2c)
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a+b+c =0
(-2a)3 + (-2b)3 + (-2c)3 - 3(-2a) (-2b) (-2c)=-24abc
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