Question

Factorise: m-1-(m-1)^2+am-a

Answer 1

Given m - 1 - (m - 1)^2 + am - a

          m - 1 - (m^2 - 2m  + 1 ) + am - a

          m - 1 - m^2 + 2m - 1 + am - a

         am - m^2 - a + 3m - 2.

         (m - 1)(a - m + 2).


Hope this helps!