Hàm số f(x)=2^(3x-1) có đạo hàm

A. $f\text{'}\left(x\right)={3.2}^{3x-1}$

B. $f\text{'}\left(x\right)={3.2}^{3x-1}.ln2$

C. $f\text{'}\left(x\right)=\left(3x-1\right)2^{3x-2}$

D. $f\text{'}\left(x\right)=\left(3x-1\right)2^{3x-2}.ln2$