/ ______________\ / ______________\ / ________________\ / ________________\ | / ____ | | / ____ | | / ____ | | / ____ | | / 9 3*\/ 13 | | / 9 3*\/ 13 | | / 9 3*\/ 13 | | / 9 3*\/ 13 | |x + I* / - + -------- |*|x - I* / - + -------- |*|x + / - - + -------- |*|x - / - - + -------- | \ \/ 2 2 / \ \/ 2 2 / \ \/ 2 2 / \ \/ 2 2 /
(((x + i*sqrt(9/2 + 3*sqrt(13)/2))*(x - i*sqrt(9/2 + 3*sqrt(13)/2)))*(x + sqrt(-9/2 + 3*sqrt(13)/2)))*(x - sqrt(-9/2 + 3*sqrt(13)/2))