math
posted by siti .
Use mathematical induction to show that
3n + 7n − 2 is divisible by 8 for all n 1. [Hint: 7n + 1 is divisible by 2.]

I think you have a typo
Your statement is only true for n = 1
http://www.wolframalpha.com/input/?i=evaluate+3n+%2B+7n++2+for+n+%3D+1%2C2%2C3%2C4
Is there supposed to be a power somewhere?
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