Question

-m(m-2)+5m2(1-3m) упрастить выражение​

Answer 1

$\displaystyle -m(m-2)+5m^2(1-3m)=-m^2+2m+5m^2-15m^3=4m^2+2m-15m^3=\\ \\ -15m^3+4m^2+2m$