Question

-xy. (x²-2xy+y²) nao entendi esse assunto, me ajudem

Answer 1

$- xy( {x}^{2} - 2xy + {y}^{2} ) = \\ = - {x}^{3} y + 2 {x}^{2} {y}^{2} - x {y}^{3}$

Answer 2

= -xy. (x²-2xy+y²)
= x^2.(-xy) - 2xy.(-xy) + y^2.(- xy)
= - x^3y + 2x^2.y^2 - x.y^3