− u 3 v 4 − 2 u 3 v 3 + 2 u 3 v 2 + u 2 v 5 − 4 u 2 v 4 + 8 u 2 v 3 − 7 u 2 v 2 + 3 u 2 v + 3 u v 4 − 7 u v 3 + 8 u v 2 − 4 u v + u + 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^{2}v^{5}-4u^{2}v^{4}+8u^{2}v^{3}-7u^{2}v^{2}+3u^{2}v+3uv^{4}-7uv^{3}+8uv^{2}-4uv+u+2v^{3}-2v^{2}+v}{u^{3/2}v^{5/2}}}}
