Factorise the following: ab 2 + (a - 1)b - 1

ab 2 + (a - 1)b - 1 = ab 2 + ab - b - 1 = ab(b + 1) - 1(b + 1) = (b + 1)(ab - 1) Hence, ab 2 + (a - 1)b - 1 = (b + 1)(ab - 1).

Mathematics

37 Likes

ab² + (a - 1)b - 1

= ab² + ab - b - 1

= ab(b + 1) - 1(b + 1)

= (b + 1)(ab - 1)

Hence, ab² + (a - 1)b - 1 = (b + 1)(ab - 1).

Answered By

21 Likes