Simplify: 22n+1−4n2^{2n+1}-4^n22n+1−4n (express in terms of 2n2^n2n).
2⋅4n−4n=4n2 \cdot 4^n - 4^n = 4^n2⋅4n−4n=4n
22n+12^{2n+1}22n+1
000
2n2^n2n