− v u 5 − 3 v 2 u 4 + 4 v u 4 − u 4 − 3 v 3 u 3 + 7 v 2 u 3 − 8 v u 3 + 3 u 3 + 3 v 3 u 2 − 8 v 2 u 2 + 7 v u 2 − 3 u 2 − v 3 u + 4 v 2 u − 3 v u − v 2 {\displaystyle -vu^{5}-3v^{2}u^{4}+4vu^{4}-u^{4}-3v^{3}u^{3}+7v^{2}u^{3}-8vu^{3}+3u^{3}+3v^{3}u^{2}-8v^{2}u^{2}+7vu^{2}-3u^{2}-v^{3}u+4v^{2}u-3vu-v^{2}}
