Factorisation - Which identity?

Asked by rajat951 | 25th Jul, 2009, 01:09: AM

Expert Answer:

Here we will use  if a + b + c = 0, then a3 + b3 + c3 = 3abc  since (2p - q)+ (q - 5r)+ (5r - 2p) =0

(2p - q)3 + (q - 5r)3 + (5r - 2p)3    3(2p-q)(q-5r)(5r-2p)

Answered by  | 27th Jul, 2009, 02:46: PM

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