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Question
Factorize each of the following expressions :
ab−a−b+1
Factorize each of the following expressions :
ab−a−b+1
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Solution
ab−a−b+1=a(b−1)−1(b−1) {(b−1) is common }=(b−1)(a−1)
ab−a−b+1=a(b−1)−1(b−1) {(b−1) is common }=(b−1)(a−1)
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