2
-------------------
________________
/ 2
\/ 1 - (1 + 2*x)
$$\frac{2}{\sqrt{- \left(2 x + 1\right)^{2} + 1}}$$
4*(1 + 2*x)
-------------------
3/2
/ 2\
\1 - (1 + 2*x) /
$$\frac{8 x + 4}{\left(- \left(2 x + 1\right)^{2} + 1\right)^{\frac{3}{2}}}$$
/ 2 \
| 3*(1 + 2*x) |
8*|1 + --------------|
| 2|
\ 1 - (1 + 2*x) /
----------------------
3/2
/ 2\
\1 - (1 + 2*x) /
$$\frac{\frac{24 \left(2 x + 1\right)^{2}}{- \left(2 x + 1\right)^{2} + 1} + 8}{\left(- \left(2 x + 1\right)^{2} + 1\right)^{\frac{3}{2}}}$$