/ d / log(3) \\|
(14 + 2*x)*|-----|---------||| 2
\dxi_2\log(xi_2)//|xi_2=x + 14*x + 130
$$\left(2 x + 14\right) \left. \frac{d}{d \xi_{2}} \frac{\log{\left(3 \right)}}{\log{\left(\xi_{2} \right)}} \right|_{\substack{ \xi_{2}=x^{2} + 14 x + 130 }}$$
/ 2 / 2 \ \
|2*(7 + x) *|1 + --------------------|*log(3) |
| | / 2 \| |
| \ log\130 + x + 14*x// / d / log(3) \\| |
2*|-------------------------------------------- + |-----|---------||| 2 |
| 2 \dxi_2\log(xi_2)//|xi_2=x + 14*x + 130|
| / 2 \ 2/ 2 \ |
\ \130 + x + 14*x/ *log \130 + x + 14*x/ /
$$2 \cdot \left(\left. \frac{d}{d \xi_{2}} \frac{\log{\left(3 \right)}}{\log{\left(\xi_{2} \right)}} \right|_{\substack{ \xi_{2}=x^{2} + 14 x + 130 }} + \frac{2 \cdot \left(1 + \frac{2}{\log{\left(x^{2} + 14 x + 130 \right)}}\right) \left(x + 7\right)^{2} \log{\left(3 \right)}}{\left(x^{2} + 14 x + 130\right)^{2} \log{\left(x^{2} + 14 x + 130 \right)}^{2}}\right)$$
/ 2 / 2 \ 2 / 2 \ \
| 4*(7 + x) *|1 + --------------------| 4*(7 + x) *|1 + --------------------| |
| 2 | / 2 \| | / 2 \| |
| 6 4*(7 + x) \ log\130 + x + 14*x// \ log\130 + x + 14*x// |
4*(7 + x)*|3 + -------------------- - --------------------------------------- - ------------------------------------- - --------------------------------------|*log(3)
| / 2 \ / 2 \ 2/ 2 \ 2 / 2 \ / 2 \|
\ log\130 + x + 14*x/ \130 + x + 14*x/*log \130 + x + 14*x/ 130 + x + 14*x \130 + x + 14*x/*log\130 + x + 14*x//
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
2
/ 2 \ 2/ 2 \
\130 + x + 14*x/ *log \130 + x + 14*x/
$$\frac{4 \left(x + 7\right) \left(- \frac{4 \cdot \left(1 + \frac{2}{\log{\left(x^{2} + 14 x + 130 \right)}}\right) \left(x + 7\right)^{2}}{x^{2} + 14 x + 130} - \frac{4 \cdot \left(1 + \frac{2}{\log{\left(x^{2} + 14 x + 130 \right)}}\right) \left(x + 7\right)^{2}}{\left(x^{2} + 14 x + 130\right) \log{\left(x^{2} + 14 x + 130 \right)}} + 3 - \frac{4 \left(x + 7\right)^{2}}{\left(x^{2} + 14 x + 130\right) \log{\left(x^{2} + 14 x + 130 \right)}^{2}} + \frac{6}{\log{\left(x^{2} + 14 x + 130 \right)}}\right) \log{\left(3 \right)}}{\left(x^{2} + 14 x + 130\right)^{2} \log{\left(x^{2} + 14 x + 130 \right)}^{2}}$$