For which xxx does the series ∑n=1∞(x−3)nn2\sum_{n=1}^{\infty} \frac{(x-3)^n}{n^2}∑n=1∞n2(x−3)n converge?
2≤x≤42 \leq x \leq 42≤x≤4
2<x<42 < x < 42<x<4
x=3x=3x=3
All real xxx