\[\frac{x^{2} + 15x - 76}{2x + 38}\]
\[2x + 38 \neq 0\]
\[2x \neq - 38\]
\[x \neq - 19.\]
\[x^{2} + 15x - 76 = 0\]
\[x_{1} + x_{2} = - 15;\ \ x_{1} \cdot x_{2} = - 76\]
\[x_{1} = 4;\ \ \ x_{2} = - 19\ (не\ подходит).\]
\[Ответ:при\ x = 4.\]