/ ___\ / ___\ / ___ \ / ___\ | I \/ 3 | | I \/ 3 | | \/ 3 I| | I \/ 3 | (a + I)*(a - I)*|a + - + -----|*|a + - - + -----|*|a + - ----- + -|*|a + - - - -----| \ 2 2 / \ 2 2 / \ 2 2/ \ 2 2 /
(((((a + i)*(a - i))*(a + i/2 + sqrt(3)/2))*(a - i/2 + sqrt(3)/2))*(a - sqrt(3)/2 + i/2))*(a - i/2 - sqrt(3)/2)