/ 3 ___ 3 ___ 5/6\ / 3 ___ 3 ___ 5/6\ / 3 ___\ | \/ 6 I*\/ 2 *3 | | \/ 6 I*\/ 2 *3 | \x + \/ 6 /*|x + - ----- + ------------|*|x + - ----- - ------------| \ 2 2 / \ 2 2 /
((x + 6^(1/3))*(x - 6^(1/3)/2 + i*2^(1/3)*3^(5/6)/2))*(x - 6^(1/3)/2 - i*2^(1/3)*3^(5/6)/2)