urgent

Asked by pritam | 27th Nov, 2009, 01:14: PM

Expert Answer:

x+y = -4

(x+y)3 = (-4)3

x3+y3 + 3xy(x+y) = -64

x3+y3 + 3xy(-4) = -64

x3+y3 -12xy = -64

x3+y3 -12xy + 64 = -64 + 64

x3+y3 -12xy + 64 = 0

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Answered by  | 27th Nov, 2009, 01:36: PM

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