Question

2m(m^2+n^2)-m(m-n)^2+m(n+m)^2-2m^3
упростить выражение.

Answer 1

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