Question

calcula: (x-y)³ - x(x+y)(x-y)

Answer 1

x³-y³-(x²-y²)(x-y)

x³-y³-x³+xy-xy+y³

x³-x³+xy-xy-y³+y³

la solución es igual a cero

Answer 2

x³-y³-(x²-y²)(x-y)

x³-y³-x³+xy-xy+y³

x³-x³+xy-xy-y³+y³

la solución es igual a cero