Question

упростите выражение: 6*(5x+2)+3*(7x-2)

Answer 1

6 · (5х + 2) + 3 · (7х - 2) = 30х + 12 + 21х - 6 = (30х + 21х) + (12 - 6) =

= 51х + 6.

Answer 2

6(5х+2)+3(7х-2)=30х+12+21х - 6=51х+6