Question

Преобразуй в многочлен произведение
1) -2 m3n2(6m3-m2n4+10n2) =
2) 3/7 xy2(7x-1,4y+35) =
3) xy(8-x) =
4) 4x(3x3-x+1) =

Answer 1

-12m(6)n(2)+2m(5)n(6)-20m(3)n(4)
3x(2)y(2)-0,6xy(3)+15xy(2)
8xy-x(2)y
12x(4)-4x(2)+4x