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