− v 3 u 5 + v 2 u 5 + 2 v 3 u 4 − 4 v 2 u 4 + v u 4 − 2 v 3 u 3 + 6 v 2 u 3 − 5 v u 3 + u 3 + v 3 u 2 − 5 v 2 u 2 + 6 v u 2 − 2 u 2 + v 2 u − 4 v u + 2 u + v − 1 {\displaystyle -v^{3}u^{5}+v^{2}u^{5}+2v^{3}u^{4}-4v^{2}u^{4}+vu^{4}-2v^{3}u^{3}+6v^{2}u^{3}-5vu^{3}+u^{3}+v^{3}u^{2}-5v^{2}u^{2}+6vu^{2}-2u^{2}+v^{2}u-4vu+2u+v-1}
