− v u 6 − v 2 u 5 + 3 v u 5 − 2 u 5 + 2 v 2 u 4 − 5 v u 4 + 2 u 4 − 2 v 2 u 3 + 5 v u 3 − 2 u 3 + 2 v 2 u 2 − 5 v u 2 + 2 u 2 − 2 v 2 u + 3 v u − u − v {\displaystyle -vu^{6}-v^{2}u^{5}+3vu^{5}-2u^{5}+2v^{2}u^{4}-5vu^{4}+2u^{4}-2v^{2}u^{3}+5vu^{3}-2u^{3}+2v^{2}u^{2}-5vu^{2}+2u^{2}-2v^{2}u+3vu-u-v}
