9. Verity: x3+y3=(x+y)(x2-xy+y2)
Answers
Answered by
2
Step-by-step explanation:
RHS = (x-y) (x2 + xy + y2)
= x3 + x2y + xy2 - x2y - xy2 - y3
= x3 - y3
=LHS
Hence verified
Answered by
0
Answer:
by using binomial theorem-
(x+y)^3 = x^3 + 3xy(x+y) + y^3
(x+y)^3 = x^3 + 3yx^2 + 3xy^2 + y^3
x^3 + y^3 = x^3 - yx^2 + xy^2 + yx^2 - xy^2 + y^3
x^3 + y^3 = (x+y)(x^2-xy+y^2)
Step-by-step explanation:
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