Let b be a positive integer and a=b^2-b.if b*3=4, then a^2-2a is divis – McqOptions

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1.	Let b be a positive integer and a=b^2-b.if b*3=4, then a^2-2a is divisible by
A.	15
B.	20
C.	24
D.	None of these
Answer» D. None of these

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