/ ___________\ / ___________\ / ___________\ / ___________\
| ___ / ___ | | ___ / ___ | | ___ / ___ | | ___ / ___ |
| 1 \/ 5 / 5 \/ 5 | | 1 \/ 5 / 5 \/ 5 | | 1 \/ 5 / 5 \/ 5 | | 1 \/ 5 / 5 \/ 5 |
(x - 2)*|x + - - ----- + 2*I* / - + ----- |*|x + - - ----- - 2*I* / - + ----- |*|x + - + ----- + 2*I* / - - ----- |*|x + - + ----- - 2*I* / - - ----- |
\ 2 2 \/ 8 8 / \ 2 2 \/ 8 8 / \ 2 2 \/ 8 8 / \ 2 2 \/ 8 8 /
$$\left(x - 2\right) \left(x + \left(- \frac{\sqrt{5}}{2} + \frac{1}{2} + 2 i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}\right)\right) \left(x + \left(- \frac{\sqrt{5}}{2} + \frac{1}{2} - 2 i \sqrt{\frac{\sqrt{5}}{8} + \frac{5}{8}}\right)\right) \left(x + \left(\frac{1}{2} + \frac{\sqrt{5}}{2} + 2 i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}\right)\right) \left(x + \left(\frac{1}{2} + \frac{\sqrt{5}}{2} - 2 i \sqrt{\frac{5}{8} - \frac{\sqrt{5}}{8}}\right)\right)$$
((((x - 2)*(x + 1/2 - sqrt(5)/2 + 2*i*sqrt(5/8 + sqrt(5)/8)))*(x + 1/2 - sqrt(5)/2 - 2*i*sqrt(5/8 + sqrt(5)/8)))*(x + 1/2 + sqrt(5)/2 + 2*i*sqrt(5/8 - sqrt(5)/8)))*(x + 1/2 + sqrt(5)/2 - 2*i*sqrt(5/8 - sqrt(5)/8))