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