Question

Prove:x^3+y^3=(x+y)(x^2-xy+y^2)​

Answer 1

Answer:

x³+y³ = (x+y)(x²-xy+y²)

RHS ;

(x+y)(x²-xy+y²)

x³-x²y +xy²+x²y-xy²+ y³

x³+ y³ -x²y+x²y+xy²- xy²

x³+y³

= LHS.