1. x(a-2)+c(-(a-2))
x(a-2)-c(a-2)
(a-2) (x-c)
2. 2(b-3)+b(-(b-3))
2(b-3)-b(b-3)
(b-3)(2-b)
3.(b-c) (a-y+9)
1. x(a-2)+c(-(a-2))
x(a-2)-c(a-2)
(a-2) (x-c)
2. 2(b-3)+b(-(b-3))
2(b-3)-b(b-3)
(b-3)(2-b)
3.(b-c) (a-y+9)