if n is an odd integer then prove that n2 -1 is divisible by 8
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this is wrong question becoz
n is odd then when it multiplied by 2 it becomes even and when we subtract by 1 then it becomes odd and 8 is even
n is odd then when it multiplied by 2 it becomes even and when we subtract by 1 then it becomes odd and 8 is even
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