Question

x(x-2y)³+y(2x-y)³
(x+y)³

Answer 1

[tex]\frac{x^4-8y^3x-6x^3y+12x^2y^2+8x^3y-y^4-12x^2y^2+6xy^3}{(x+y)^3} \\ \\ \frac{x^4-y^4-2y^3x+2x^3y}{(x+y)^3} \\ \\ \frac{(x^2-y^2)(x+y)^2}{(x+y)^3} \\ \\ x-y \\ \\ [/tex]