Question

19 – [EsSA] Fatorando-se o polinômio ax + ay – bx – by, obtêm-se:
a) (a + b)(x – y)
b) (a – y)(b + x)
c) (a – b)(x + y)
d) (a + x)(b – y )

Answer 1

Olá,

$\sf \: ax + ay - bx - by \\ \sf = a(x + y) - b(x + y) \\ \sf = \: (a - b)(x + y)$

Resposta: C)