/ _____________\ / _____________\ / ___________\ / ___________\ | / ___ | | / ___ | | / ___ | | / ___ | | / 1 \/ 5 | | / 1 \/ 5 | | / 1 \/ 5 | | / 1 \/ 5 | |x + I* / - - + ----- |*|x - I* / - - + ----- |*|x + / - + ----- |*|x - / - + ----- | \ \/ 2 2 / \ \/ 2 2 / \ \/ 2 2 / \ \/ 2 2 /
(((x + i*sqrt(-1/2 + sqrt(5)/2))*(x - i*sqrt(-1/2 + sqrt(5)/2)))*(x + sqrt(1/2 + sqrt(5)/2)))*(x - sqrt(1/2 + sqrt(5)/2))