For any positive integer n, prove that n3+n is divisible by 6

1.	For any positive integer n, prove that n3+n is divisible by 6
Answer» ∴ n (n-1) (n+1) = n3\xa0- n is divisible by 6.( If a number is divisible by both 2 and 3 , then it is divisible by 6)

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