/ ___________________________________________________ \ / ___________________________________________________ \ / ___________________________________________________ \
| / _____________________________ | | / _____________________________ | | / _____________________________ |
| / / 2 | | / / 2 | | / / 2 |
| / / / 3\ 6 | | / / / 3\ 6 / ___\ | | / / / 3\ 6 / ___\ |
| / \/ \-216 + 216*y / - 78732*y 3 | | / \/ \-216 + 216*y / - 78732*y 3 | 1 I*\/ 3 | | | / \/ \-216 + 216*y / - 78732*y 3 | 1 I*\/ 3 | |
| 3 / -108 + --------------------------------- + 108*y 2 | | 3 / -108 + --------------------------------- + 108*y *|- - - -------| 2 | | 3 / -108 + --------------------------------- + 108*y *|- - + -------| 2 |
| \/ 2 9*y | | \/ 2 \ 2 2 / 9*y | | \/ 2 \ 2 2 / 9*y |
|x + y + ---------------------------------------------------------- + ----------------------------------------------------------|*|x + y + -------------------------------------------------------------------------- + --------------------------------------------------------------------------|*|x + y + -------------------------------------------------------------------------- + --------------------------------------------------------------------------|
| 3 ___________________________________________________| | 3 ___________________________________________________| | 3 ___________________________________________________|
| / _____________________________ | | / _____________________________ | | / _____________________________ |
| / / 2 | | / / 2 | | / / 2 |
| / / / 3\ 6 | | / ___\ / / / 3\ 6 | | / ___\ / / / 3\ 6 |
| / \/ \-216 + 216*y / - 78732*y 3 | | | 1 I*\/ 3 | / \/ \-216 + 216*y / - 78732*y 3 | | | 1 I*\/ 3 | / \/ \-216 + 216*y / - 78732*y 3 |
| 3 / -108 + --------------------------------- + 108*y | | |- - - -------|*3 / -108 + --------------------------------- + 108*y | | |- - + -------|*3 / -108 + --------------------------------- + 108*y |
\ \/ 2 / \ \ 2 2 / \/ 2 / \ \ 2 2 / \/ 2 /
((x + y + (-108 + sqrt((-216 + 216*y^3)^2 - 78732*y^6)/2 + 108*y^3)^(1/3)/3 + 9*y^2/(-108 + sqrt((-216 + 216*y^3)^2 - 78732*y^6)/2 + 108*y^3)^(1/3))*(x + y + (-108 + sqrt((-216 + 216*y^3)^2 - 78732*y^6)/2 + 108*y^3)^(1/3)*(-1/2 - i*sqrt(3)/2)/3 + 9*y^2/((-1/2 - i*sqrt(3)/2)*(-108 + sqrt((-216 + 216*y^3)^2 - 78732*y^6)/2 + 108*y^3)^(1/3))))*(x + y + (-108 + sqrt((-216 + 216*y^3)^2 - 78732*y^6)/2 + 108*y^3)^(1/3)*(-1/2 + i*sqrt(3)/2)/3 + 9*y^2/((-1/2 + i*sqrt(3)/2)*(-108 + sqrt((-216 + 216*y^3)^2 - 78732*y^6)/2 + 108*y^3)^(1/3)))