Question

Ajuda aí por favor galera

Answer 1

$3x - 3 + \cfrac{ax}{2} - \cfrac{a}{2} \\\\= 3(x-1) + \cfrac{ax- a}{2}\\\\= \cfrac{6(x-1) }{2} + \cfrac{a(x-1)}{2}\\\\= \cfrac{6(x-1) + a(x-1) }{2} \\\\= \cfrac{(x-1)(6 + a)}{2}$