Question

Factorise the polynomial ​

Answer 1

Answer:

a(b−a)(b−1)

Step-by-step explanation:

ab ^2  −ab−a  ^2  b+a  ^2

 ⇒ab(b−1)−a  ^2  (b−1)

⇒(ab−a  ^2  )(b−1)=

a(b−a)(b−1)