\[x^{2} + 2x + q = 0;\ \ 2x_{1} + 3x_{2} = 1\]
\[\left\{ \begin{matrix} x_{1} + x_{2} = - 2\ \ \ \ (1) \\ x_{1} \cdot x_{2} = q\ \ \ \ \ \ \ \ \ (2) \\ \end{matrix} \right.\ \]
\[(1)\ x_{1} = - 2 - x_{2}\]
\[2 \cdot \left( - 2 - x_{2} \right) = + 3x_{2} = 1\]
\[- 4 - 2x_{2} + 3x_{2} = 1\]
\[x_{2} - 4 = 1\]
\[x_{2} = 5.\]
\[(2)\ x_{1} = - 2 - 5 = - 7.\]
\[3)\ - 7 \cdot 5 = q\]
\[q = - 35.\]
\[{Ответ:\ \ x}_{1} = - 7;\ \ x_{2} = 5;\ \ \]
\[q = - 35.\]