Question

do it step by step............

Answer 1

(x+y)^3 (x+y)^3 (x+y)=0

[x^3+y^3+3xy (x+y)]^2 (x+y)=0

[x^6+2x^3y^3+6x^4y (x+y)+y^6+6xy^4 (x+y)+9x^2y^2 (x+y)^2](x+y) = 0