Find the sum of the series (x-5)^n?

The series converges from x=5 to x=6, I believe. But how do I find the sum of the series? It should be a function of x.

δοτζο2013-03-11T20:45:45Z

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Hint: ∑{i=0,∞} r^n = 1 / (1 - r), |r| < 1