Question

Factorise a²+b–ab–a Pls answer fast with proper explanation

Answer 1

Step-by-step explanation:

a² - b + ab - a = a² + ab - b - a

= ( a² + ab ) - ( b + a )

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

= ( a + b) ( a - 1 )

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Answer 2

Step-by-step explanation:

Answer:(a-1)(a-b)

Step-by-step explanation:

a²+b-ab-a

=a²-ab+b-a

=a(a-b)+b-a

=a(a-b)+(-b×-1)(a×-1)

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

=(a-1)(a-b)

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