Question

resolve into factor ab^2 + (a-1) b-1​

Answer 1

Answer:

Given below

Step-by-step explanation:

ab

2

+(a−1)b−1

=ab

2

+ab−b−1

=ab(b+1)−1(b+1)

=(b+1)(ab−1)

Answer 2

Answer:

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$a {b}^{2} + (a - 1)b - 1 \\ = a {b}^{2} + ab - b - 1 \\ = ab(b + 1) - 1(b - 1) \\ = (b + 1)(ab - 1)$