-2
-------------
__________
/ 2
\/ 1 - 4*x
$$- \frac{2}{\sqrt{- 4 x^{2} + 1}}$$
-8*x
-------------
3/2
/ 2\
\1 - 4*x /
$$- \frac{8 x}{\left(- 4 x^{2} + 1\right)^{\frac{3}{2}}}$$
/ 2 \
| 12*x |
-8*|1 + --------|
| 2|
\ 1 - 4*x /
-----------------
3/2
/ 2\
\1 - 4*x /
$$- \frac{\frac{96 x^{2}}{- 4 x^{2} + 1} + 8}{\left(- 4 x^{2} + 1\right)^{\frac{3}{2}}}$$