\[\boxed{\mathbf{381}.}\]
\[x^{3} - 4x^{2} - 5x + 14 = 0;\ \ \ \]
\[x_{1} = - 2:\]
\[( - 2)^{3} - 4 \cdot ( - 2)^{2} - 5 \cdot ( - 2) +\]
\[+ 14 = - 8 - 16 + 10 + 14 = 0\]
\[x^{2} - 6x + 7 = 0\]
\[D_{1} = 9 - 7 = 2\]
\[x = 3 \pm \sqrt{2}.\]
\[Ответ:x = - 2;\ \ 3 \pm \sqrt{2}.\]