\[\left\{ \begin{matrix} x^{2} - 14x + 45 \geq 0 \\ 3,2 \leq x \leq 11,7\ \ \ \ \ \ \ \ \\ \end{matrix} \right.\ \]
\[x^{2} - 14x + 45 = 0\]
\[x_{1} + x_{2} = 14\ \ \ \ \ x_{1} = 9\]
\[x_{1}x_{2} = 45\ \ \ \ \ \ \ \ \ \ x_{2} = 5\]
\[Ответ:x = 4;\ \ 5;\ \ 9;\ \ 10;\ \ 11.\ \]