# Prove that 7|(3^(2n)-2^n) for every nonnegative integer n.?

I attempted to use induction, proving that when n=0, the statement is true. Then I assumed it to be true for n=k, and attempted to test it for k + 1, but was unsure as to how to solve it...

Follow

6 answers
6

Are you sure you want to delete this answer?