Find the inverse of f(x)=2x+3−1f(x) = 2^{x+3} - 1f(x)=2x+3−1.
f^{-1}(x) = \log_2(x+1) - 3
f^{-1}(x) = \log_2(x-1) + 3
f^{-1}(x) = \log_3(x+1) - 2
f^{-1}(x) = 2^{x-1} + 3