Question

Factorize mx - 5m - 5nx + 25

Answer 1

you can have m(x -5) - 5(nx - 5)

Answer 2

@campbell_st think the same thing

Answer 3

i guess it would really depend on which pronumeral you want where
because there is more than one way to factorise it

Answer 4

you could also have

x( m - 5n) - 5(m - 5)