\[\boxed{\text{121\ (121).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1)\ 8x \leq - 16\]
\[x \leq - 2\]
\[x_{\max} = - 2.\]
\[2)\ 8x < - 16\]
\[x < - 2\]
\[x_{\max} = - 3.\]
\[3)\ 3x < 10\]
\[x < \frac{10}{3}\]
\[x < 3\frac{1}{3}\]
\[x_{\max} = 3.\]
\[4) - 6x > - 25\]
\[x < \frac{25}{6}\]
\[x < 4\frac{1}{6}\]
\[x_{\max} = 4.\]
\[\boxed{\mathbf{121.\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[x^{2} - 7x - 8 = 0\]
\[x_{1} + x_{2} = 7;\ \ x_{1} \cdot x_{2} = - 8\]
\[x_{1} = - 1;\ \ \ x_{2} = 8.\]
\[Ответ:x = - 1;x = 8.\]