− u 3 v 4 − 2 u 3 v 3 + 2 u 3 v 2 − u 3 v + u 2 v 5 − 4 u 2 v 4 + 7 u 2 v 3 − 6 u 2 v 2 + 4 u 2 v − u 2 − u v 5 + 4 u v 4 − 6 u v 3 + 7 u v 2 − 4 u v + u − v 4 + 2 v 3 − 2 v 2 + v u 3 / 2 v 5 / 2 {\displaystyle -{\frac {u^{3}v^{4}-2u^{3}v^{3}+2u^{3}v^{2}-u^{3}v+u^{2}v^{5}-4u^{2}v^{4}+7u^{2}v^{3}-6u^{2}v^{2}+4u^{2}v-u^{2}-uv^{5}+4uv^{4}-6uv^{3}+7uv^{2}-4uv+u-v^{4}+2v^{3}-2v^{2}+v}{u^{3/2}v^{5/2}}}}
