/ 2/3 ___ 2/3\ / 2/3 ___ 2/3\ / 2/3\ | 10 I*\/ 3 *10 | | 10 I*\/ 3 *10 | \x - 10 /*|x + ----- + -------------|*|x + ----- - -------------| \ 2 2 / \ 2 2 /
((x - 10^(2/3))*(x + 10^(2/3)/2 + i*sqrt(3)*10^(2/3)/2))*(x + 10^(2/3)/2 - i*sqrt(3)*10^(2/3)/2)