\[\boxed{\mathbf{968.\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ ( - \infty;\ - 4)\]
\[x < - 4\]
\[x_{\max} = - 5.\]
\[2)\ ( - \infty;\ - 6,2\rbrack\]
\[x \leq - 6,2\]
\[x_{\max} = - 7.\]
\[3)\ ( - \infty;1\rbrack\text{\ \ }\]
\[x \leq 1\]
\[x_{\max} = 1.\]
\[4)\ ( - \infty;\ - 1,8)\text{\ \ }\]
\[x < - 1,8\]
\[x_{\max} = - 2.\ \]