2*n
-----------------
2 2
1 + n *(2*x + 3)
$$\frac{2 n}{n^{2} \left(2 x + 3\right)^{2} + 1}$$
3
-8*n *(3 + 2*x)
--------------------
2
/ 2 2\
\1 + n *(3 + 2*x) /
$$- \frac{8 n^{3} \left(2 x + 3\right)}{\left(n^{2} \left(2 x + 3\right)^{2} + 1\right)^{2}}$$
/ 2 2 \
3 | 4*n *(3 + 2*x) |
16*n *|-1 + -----------------|
| 2 2|
\ 1 + n *(3 + 2*x) /
------------------------------
2
/ 2 2\
\1 + n *(3 + 2*x) /
$$\frac{16 n^{3} \left(\frac{4 n^{2} \left(2 x + 3\right)^{2}}{n^{2} \left(2 x + 3\right)^{2} + 1} - 1\right)}{\left(n^{2} \left(2 x + 3\right)^{2} + 1\right)^{2}}$$