Question

Разложите на множители: а) y(a + 2) – 7(a + 2) б) mb + mc + 6b + 6c

Answer 1

a) (a-2) (y-7)
b) mb+mc+6b+6c= (6b+mb)+(6c+mc)= b(6+m)+c(6+m) = (6+m) (b+c)

Answer 2

$1)y times (a + 2) - 7 times (a + 2) = \ (a + 2) times (y - 7)$
$2)mb + mc + 6b + 6c = m times (b + c) + 6 times (b + c) = \ (b + c) times (m + 6)$