Find all values of xxx where the series ∑n=1∞xnn⋅2n\sum_{n=1}^{\infty} \frac{x^n}{n \cdot 2^n}∑n=1∞n⋅2nxn converges absolutely.
∣x∣<2|x| < 2∣x∣<2
∣x∣≤2|x| \leq 2∣x∣≤2
∣x∣<1|x| < 1∣x∣<1
∣x∣≤1|x| \leq 1∣x∣≤1