SOLUTION: Use PMI to show that 3^n + 7^n - 2 is divisible by 8 for all positive integers n.

Question 1201384: Use PMI to show that 3^n + 7^n - 2 is divisible by 8 for all positive integers n.
Answer by ikleyn(52785) (Show Source): You can put this solution on YOUR website!
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https://www.quora.com/How-would-you-prove-by-induction-that-3-n-7-n-2-is-divisible-by-8

https://math.stackexchange.com/questions/1561614/prove-by-induction-that-3n-7n-%E2%88%922-is-divisible-by-8-for-all-positive-integ

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