FACTORISE

Asked by  | 25th Jul, 2009, 06:34: AM

Expert Answer:

27(x+y)3 + 8(2x -y)3

[3(x+y)]3+[2(2x-y)]3........(a 3+b3) = (a + b)(a2 -ab +b2)

[3(x+y) + 2(2x-y)][9(x+y)2 -6(x+y)(2x-y) +4(2x-y)2]

[3(x+y) + 2(2x-y)][9(x+y)2 -6(2x2 -xy +2xy -y2)+4(2x-y)2]

[3(x+y) + 2(2x-y)][9(x+y)2 -6(2x2 +xy -y2)+4(2x-y)2]

Answered by  | 27th Jul, 2009, 07:27: PM

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