Question

Раскройте скобки:1) 3(2а+b-8c); 2) -4(-x+3y-4z);3) (m-5n-6k)(-1,4); 4) -0.8t(4p-5L-1,2); 5)(-a=3,4b+3c)(-d)

Answer 1

1) 3(2а+b-8c) = 6a+3b-24c.
2) -4(-x+3y-4z) = 4x-12y+16z.
3) (m-5n-6k)(-1,4) = -1,4m+7n+8,4k.
4) -0,8t(4p-5L-1,2) = -3,2tp+4tl+0,96t.
5) (-a+3,4b+3c)(-d) = ad-3,4bd-3cd.