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