$$\int \frac { d x } { \sqrt { 14 - 12 x - 2 x ^ { 2 } } }$$
$\frac{\sqrt{2}\arcsin(\frac{x+3}{4})}{2}+С$
$\frac{\sqrt{\frac{2}{\left(1-x\right)\left(x+7\right)}}}{2}$
