/ 2 / 2\\
| (7 + 18*x) *\5 + 7*x + 9*x /|
2*|-9 + ----------------------------|
| 2 |
| / 2\ |
\ 1 + \5 + 7*x + 9*x / /
-------------------------------------
2
/ 2\
1 + \5 + 7*x + 9*x /
$$\frac{2 \left(\frac{\left(18 x + 7\right)^{2} \left(9 x^{2} + 7 x + 5\right)}{\left(9 x^{2} + 7 x + 5\right)^{2} + 1} - 9\right)}{\left(9 x^{2} + 7 x + 5\right)^{2} + 1}$$
/ 2\
| 2 / 2\ |
| 2 2 4*(7 + 18*x) *\5 + 7*x + 9*x / |
2*(7 + 18*x)*|270 + (7 + 18*x) + 378*x + 486*x - -------------------------------|
| 2 |
| / 2\ |
\ 1 + \5 + 7*x + 9*x / /
-----------------------------------------------------------------------------------
2
/ 2\
| / 2\ |
\1 + \5 + 7*x + 9*x / /
$$\frac{2 \left(18 x + 7\right) \left(486 x^{2} + 378 x + \left(18 x + 7\right)^{2} - \frac{4 \left(18 x + 7\right)^{2} \left(9 x^{2} + 7 x + 5\right)^{2}}{\left(9 x^{2} + 7 x + 5\right)^{2} + 1} + 270\right)}{\left(\left(9 x^{2} + 7 x + 5\right)^{2} + 1\right)^{2}}$$