2
2 2*x / 2 \
-2 + ------ + ------ + log\x + 4/
2 2
x x + 4
1 + --
4
$$\frac{2 x^{2}}{x^{2} + 4} + \log{\left(x^{2} + 4 \right)} - 2 + \frac{2}{\frac{x^{2}}{4} + 1}$$
/ 2 \
| 8 2*x |
2*x*|3 - ------ - ------|
| 2 2|
\ 4 + x 4 + x /
-------------------------
2
4 + x
$$\frac{2 x \left(- \frac{2 x^{2}}{x^{2} + 4} + 3 - \frac{8}{x^{2} + 4}\right)}{x^{2} + 4}$$
/ 2 4 2 \
| 8 12*x 8*x 32*x |
2*|3 - ------ - ------ + --------- + ---------|
| 2 2 2 2|
| 4 + x 4 + x / 2\ / 2\ |
\ \4 + x / \4 + x / /
-----------------------------------------------
2
4 + x
$$\frac{2 \left(\frac{8 x^{4}}{\left(x^{2} + 4\right)^{2}} - \frac{12 x^{2}}{x^{2} + 4} + \frac{32 x^{2}}{\left(x^{2} + 4\right)^{2}} + 3 - \frac{8}{x^{2} + 4}\right)}{x^{2} + 4}$$