factorise the following

Question

(1). 5ax - 5bx - a+b
(2). m2 - n2 - mq - nq?

Answer 1

5x (a-b) -1(a-b) = 4(a-b)

now I bet you mean
m^2 - n^2 - m q - nq
(m-n) (m+n) - q (m+n) and continue :)