/ 3 ____ 2/3 5/6\ / 3 ____ 2/3 5/6\
/ 3 ____\ | \/ 12 I*2 *3 | | \/ 12 I*2 *3 |
\x - \/ 12 /*|x + ------ + -----------|*|x + ------ - -----------|
\ 2 2 / \ 2 2 /
$$\left(x - \sqrt[3]{12}\right) \left(x + \left(\frac{\sqrt[3]{12}}{2} + \frac{2^{\frac{2}{3}} \cdot 3^{\frac{5}{6}} i}{2}\right)\right) \left(x + \left(\frac{\sqrt[3]{12}}{2} - \frac{2^{\frac{2}{3}} \cdot 3^{\frac{5}{6}} i}{2}\right)\right)$$
((x - 12^(1/3))*(x + 12^(1/3)/2 + i*2^(2/3)*3^(5/6)/2))*(x + 12^(1/3)/2 - i*2^(2/3)*3^(5/6)/2)