\[\boxed{\text{155\ (155).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ x^{3} = x + 1\]
\[y = x^{3};\ \ y = x + 1\]
\(\ \)
\[Ответ:x \approx 1,3.\]
\[\textbf{б)}\ x^{3} = 2x\]
\[y = x^{3};\ \ y = 2x\]
\(\text{\ \ }\)
\[Ответ:x \approx 1,4.\]
\[\textbf{в)}\ x^{3} = 2x + 1\]
\[y = x^{3};\ \ y = 2x + 1.\ \]
\(\ \)
\[Ответ:x \approx 1,6.\]