CBSE Class 9 Answered
Factorisation - Which identity?
Asked by rajat951 | 21 Jul, 2009, 01:44: AM
Expert Answer
Given 3x + 2y = 5,i.e 3x+2y-5=0 so (3x)3+(2y)3+(-5)3 = 3X3xX2yX(-5) = -90xy
i.e 27x 3+ 8y 3 + 90x y =125
we have used x + y + z=0 then x3+y3+z3=3x y z
Answered by | 21 Jul, 2009, 11:03: AM
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