− 2 u v 3 − 8 u v 2 + 10 u v − 3 u − 3 v 3 + 10 v 2 − 8 v + 2 u v 3 / 2 {\displaystyle -{\frac {2uv^{3}-8uv^{2}+10uv-3u-3v^{3}+10v^{2}-8v+2}{{\sqrt {u}}v^{3/2}}}}
