What is the result of multiplying the power series ∑n=0∞xn\sum_{n=0}^{\infty} x^n∑n=0∞xn by x2x^2x2?
∑n=0∞xn+2\sum_{n=0}^{\infty} x^{n+2}∑n=0∞xn+2
∑n=0∞xn−2\sum_{n=0}^{\infty} x^{n-2}∑n=0∞xn−2
∑n=2∞xn\sum_{n=2}^{\infty} x^{n}∑n=2∞xn
∑n=0∞2xn\sum_{n=0}^{\infty} 2x^n∑n=0∞2xn