А*(3+4), 3*(х+2)+3*(х-1)

Question

А*(3+4), 3*(х+2)+3*(х-1)

Answer 1

А*(3 + 4) = 3а + 4а = 7а
3(х + 2) + 3(х - 1) = 3х + 6 + 3х - 3 = 6х + 3

Answer 2

В первом: 7a
во втором: 6x+3