factorize: ab²+b(a-1)-1
the answer is (ab-1) (b+1)
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Answer:
(b+1) ( ab - 1)
Step-by-step explanation:
ab²+ (a -1) b-1
ab²+ ab - b _1
ab ( b +1) - 1 ( b+ 1)
(b+1) (ab-1)
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