Question

Раскройте скобки
9(e-10-k)
(3x-6y+9z)a
c(12+g-67h)

Answer 1

9e-90-9K
3xa-6ya+9az
c12+cg-67ch

Answer 2

9(e-10-k)=9e-90-9k
(3x-6y+9z)a=3ax-6ay+9az
c(12+g-67h)=12c+cg-67ch