Выполните умножение двучленов: (n+2m)(n^2-2mn+4m^2)

Question

Выполните умножение двучленов:
(n+2m)(n^2-2mn+4m^2)

Answer 1

(n+2m)(n²-2mn+4m²)=n³-2mn²+4m²n+2mn²-4m²n+8m³=n³+8m³

Answer 2

=n^3-2mn^2+4m^2n+2mn^2-4m^2n+8m^3