Question

fatore
A) 3 ax -3ay-2bx-2by
B)X³-3bx-3 ax²+9ab

Answer 1

a) 3ax-3ay-2bx-2by
    3a(x-y)-2b(x-y)
    (x-y)(3a-2b)

b) x³-3bx-3ax²+9ab
    x(x²-3b)-3a(x²-3b)
    (x²-3b).(x-3a)