Question

factorise: ax+bx-ay-by
by identities ​

Answer 1

Answer:

ax+bx−ay−by

=(ax−ay)+(bx−by)

=a(x−y)+b(x−y)

=(x−y)(a+b)

Answer 2

Answer:

we take common

x(a+b)-y(a+b)

(x-y) (a+b)