/ 2 \
| 4*x |
/ 1\ 2*|-1 + ------|*(x + log(x))
6*x*|1 + -| | 2|
3 2*atan(x) \ x/ \ 1 + x /
- ----------- + --------- - ----------- + ----------------------------
2 / 2\ 3 2 2
x *\1 + x / x / 2\ / 2\
\1 + x / \1 + x /
$$- \frac{6 x \left(1 + \frac{1}{x}\right)}{\left(x^{2} + 1\right)^{2}} + \frac{2 \left(x + \log{\left(x \right)}\right) \left(\frac{4 x^{2}}{x^{2} + 1} - 1\right)}{\left(x^{2} + 1\right)^{2}} - \frac{3}{x^{2} \left(x^{2} + 1\right)} + \frac{2 \operatorname{atan}{\left(x \right)}}{x^{3}}$$