Question

factorise ab^2-(a-1)b-1​

Answer 1

Answer:

Ab^2+ab-b-1= ab(b+1)-1(b+1)= ( ab-1)(b+1) hope it helps u

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Answer 2

Answer:

ab² + (a-1)b-1 =0

ab² + ab -b -1 = 0

ab² -b +ab -1 =0

b ( ab -1) +1(ab-1) =0

(ab-1) (b+1) =0

b= -1 , a = -1

3.9

Step-by-step explanation:

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