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help! 4 consecutive numbers divisible by 4
prove that for any integer n(n^2-1)(n+2) is divisible by 4??
i know two of them are even, but how do i actually prove this??
thanks
Homework Statement
prove that for any integer n(n^2-1)(n+2) is divisible by 4??
Homework Equations
The Attempt at a Solution
i know two of them are even, but how do i actually prove this??
thanks