please sir fast

Asked by pranavjain | 1st Feb, 2010, 07:38: PM

Expert Answer:

Any further factorization is not simple to be useful of the following expression.

ab(a2+b2) - xy(x2+y2)

But if we want to try,

use (X2-Y2) = (X+Y)(X-Y)

or try writing,

[3ab(a2+b2) - 3xy(x2+y2)]/3 = ((a+b)3 - a3 - b3 - (x+y)3 + x3 + y3)/3




Answered by  | 2nd Feb, 2010, 10:36: AM

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