Разложение на множители
[src]/ __________________ / ___\\ / __________________ / ___\\
| 3 / ____ | 1 I*\/ 3 || | 3 / ____ | 1 I*\/ 3 || / __________________\
| \/ 81 + 27*I*\/ 55 *|- - - -------|| | \/ 81 + 27*I*\/ 55 *|- - + -------|| | 3 / ____ |
| 12 \ 2 2 /| | 12 \ 2 2 /| | 12 \/ 81 + 27*I*\/ 55 |
|x + ------------------------------------- + -------------------------------------|*|x + ------------------------------------- + -------------------------------------|*|x + --------------------- + ---------------------|
| __________________ / ___\ 3 | | __________________ / ___\ 3 | | __________________ 3 |
| 3 / ____ | 1 I*\/ 3 | | | 3 / ____ | 1 I*\/ 3 | | | 3 / ____ |
| \/ 81 + 27*I*\/ 55 *|- - - -------| | | \/ 81 + 27*I*\/ 55 *|- - + -------| | \ \/ 81 + 27*I*\/ 55 /
\ \ 2 2 / / \ \ 2 2 / /
$$\left(x + \left(\frac{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{81 + 27 \sqrt{55} i}}{3} + \frac{12}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{81 + 27 \sqrt{55} i}}\right)\right) \left(x + \left(\frac{12}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{81 + 27 \sqrt{55} i}} + \frac{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{81 + 27 \sqrt{55} i}}{3}\right)\right) \left(x + \left(\frac{12}{\sqrt[3]{81 + 27 \sqrt{55} i}} + \frac{\sqrt[3]{81 + 27 \sqrt{55} i}}{3}\right)\right)$$