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