Guest Session: 1 Question Remaining. Create Account to save progress.
Login
Power Serieshard
0:00.0

Find the sum of ∑n=0∞(n+1)(n+2)2n\sum_{n=0}^{\infty} \frac{(n+1)(n+2)}{2^n}∑n=0∞​2n(n+1)(n+2)​.