Question

Factorise a2 + b - ab - a

Answer 1

a^2 + b - ab - a = (a^2 - a) +(b - ab)

= a(a - 1) -b(a - 1)

= (a - 1)(a - b)

Answer 2

Answer:

(a^2-a)+(b-ab)

=a(a-a)+b(1-a)

=a(0)+b(-a)

=0+(-ab)

=0-ab

=-ab

Step-by-step explanation:

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