\[\boxed{\text{162\ (162).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ \sqrt[3]{5} \approx 1,7;\ \]
\[\textbf{б)}\ \sqrt[3]{- 4} \approx - 1,6;\]
\[\textbf{в)}\ \sqrt[3]{- 2} \approx - 1,25;\ \]
\[\textbf{г)}\ \sqrt[3]{2} \approx 1,25.\ \]
\[\boxed{\text{162.}\text{\ }\text{ОК\ ГДЗ\ -\ домашка\ на\ 5}}\]
\[1)\ a > 0;\ \ D > 0\]
\[a > 0;\ \ D = 0\]
\[a > 0;\ \ D < 0\]
\[2)\ a < 0;\ \ D > 0\]
\[a < 0;\ \ D = 0\]
\[a < 0;\ \ D < 0\]