Раскройте скобки. 2(x-7y+3z) -7(5-a-4b) (c-8d+6d)*(1,2)

Question

Раскройте скобки.
2(x-7y+3z)
-7(5-a-4b)
(c-8d+6d)*(1,2)

Answer 1

2х-14у+6z
-35+7a+28b
1,2c-9.6d+7,8d

Answer 2

2х-14у+6z
-35+7а+28b
1,2c-9,6d+7,2d=1,2c-2,4d