-3
-------------------
________________
/ 2
\/ 1 - (3*x + 1)
$$- \frac{3}{\sqrt{- \left(3 x + 1\right)^{2} + 1}}$$
-9*(1 + 3*x)
-------------------
3/2
/ 2\
\1 - (1 + 3*x) /
$$- \frac{27 x + 9}{\left(- \left(3 x + 1\right)^{2} + 1\right)^{\frac{3}{2}}}$$
/ 2 \
| 3*(1 + 3*x) |
-27*|1 + --------------|
| 2|
\ 1 - (1 + 3*x) /
------------------------
3/2
/ 2\
\1 - (1 + 3*x) /
$$- \frac{\frac{81 \left(3 x + 1\right)^{2}}{- \left(3 x + 1\right)^{2} + 1} + 27}{\left(- \left(3 x + 1\right)^{2} + 1\right)^{\frac{3}{2}}}$$