\[\Longrightarrow \left\{ \begin{matrix} x^{2} - 49 > 0\ \ \ \ \ \ \ \ \ \ \ \ \ \\ \frac{2 \cdot (x + 8)}{(x + 3)(x - 8)} < 0 \\ \end{matrix} \right.\ \text{\ \ \ \ \ \ \ \ \ }\]
\[\left\{ \begin{matrix} (x - 7)(x + 7) > 0 \\ \frac{2 \cdot (x + 8)}{(x + 3)(x - 8)} < 0 \\ \end{matrix} \right.\ \]
\[Ответ:( - \infty; - 8) \cup (7;8)\text{.\ }\]