Question

plZzz Complete this identity

(x+y)3.
(x-y)3.

Answer 1

(X+y) = x cube + y cube +3xy (x+y)
(X-y) = x cube - y cube -3xy (x-y)

Answer 2

(x+y)³ = x³ + y³ + 3xy(x+y)
= X³ + y³ + 3x²y + 3xy²

(X-y)³ = x³ - y³ - 3xy(x-y)
= X³ - y³ - 3x²y + 3xy²