2. The derivative of $\frac{1}{u(x)}$ is $- \frac{u'(x)}{u^2(x)}$
The derivative of $\frac{1}{3x-2}$ is $- \frac{3}{(3x-2)^2}$
The derivative of $\frac{2}{3x-2}$ is $- \frac{6}{(3x-2)^2}$