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## Answers

on dividing ax^3-b(x+1) from (x-1) we get remainder a-2b

(x-1) to be factor of ax^3-b(x+1) remainder should be zero

a-2b = 0

a = 2b

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on dividing ax^3-b(x+1) from (x-1) we get remainder a-2b

(x-1) to be factor of ax^3-b(x+1) remainder should be zero

a-2b = 0

a = 2b