u 3 ( − v 2 ) + 2 u 3 v − u 3 + u 2 v 2 − u 2 v + u 2 + u v 3 − u v 2 + u v − v 3 + 2 v 2 − v u 3 / 2 v 3 / 2 {\displaystyle {\frac {u^{3}\left(-v^{2}\right)+2u^{3}v-u^{3}+u^{2}v^{2}-u^{2}v+u^{2}+uv^{3}-uv^{2}+uv-v^{3}+2v^{2}-v}{u^{3/2}v^{3/2}}}}
