Question

The polynomial a^2-b+ab-a on factorization reduces to-
Options are-
a) (a+b)(a^2+b^2) b) (a+b)(a+1)
c) (a-b)(a+b) d) (a+b)(a-1)​

Answer 1

a) a² +b−ab−a

= a² −ab+b−a

= a(a−b)−1(a−b)

=(a−1)(a−b)