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