− 2 u 3 v 3 + 2 u 3 v 2 − u 3 v − 4 u 2 v 4 + 9 u 2 v 3 − 10 u 2 v 2 + 5 u 2 v − u 2 − u v 5 + 5 u v 4 − 10 u v 3 + 9 u v 2 − 4 u v − v 4 + 2 v 3 − 2 v 2 u 3 / 2 v 5 / 2 {\displaystyle {\frac {-2u^{3}v^{3}+2u^{3}v^{2}-u^{3}v-4u^{2}v^{4}+9u^{2}v^{3}-10u^{2}v^{2}+5u^{2}v-u^{2}-uv^{5}+5uv^{4}-10uv^{3}+9uv^{2}-4uv-v^{4}+2v^{3}-2v^{2}}{u^{3/2}v^{5/2}}}}