\[\boxed{\text{150\ (150).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ x^{3} = 2\]
\[y = x^{3};\ \ y = 2\]
\[Ответ:x \approx 1,3.\]
\[\textbf{б)}\ x^{3} = 4\]
\[y = x^{3};y = 4\]
\[Ответ:x \approx 1,6.\]
\[\textbf{в)}\ x^{3} = - 5\]
\[y = x^{3};\ \ y = - 5\]
\[Ответ:x \approx - 1,7.\]