Question

раскрыть скобки
1)3(2a+b-8c)=
2)-4(-x+3y-4z)=
3)(m-5n-6k)*(-1,4)=
4)-0,8t*(4p-5j-1,2)

Answer 1

1)3(2a+b-8c)=6а+3b-24c
2)-4(-x+3y-4z)=4х-12y+16z
3)(m-5n-6k)*(-1,4)=-1.4m+7n+8.4k
4)-0,8t*(4p-5j-1,2)=-3.2tp+4tj+0,96t