u v 2 w 2 − u v 2 w + u v w 2 − 2 u v w + u v − u w 2 + 2 u w − 2 v 2 w 3 + v 2 w 2 − v w 4 + 2 v w 3 − v w 2 + w 3 − w 2 u v w 2 {\displaystyle {\frac {uv^{2}w^{2}-uv^{2}w+uvw^{2}-2uvw+uv-uw^{2}+2uw-2v^{2}w^{3}+v^{2}w^{2}-vw^{4}+2vw^{3}-vw^{2}+w^{3}-w^{2}}{{\sqrt {u}}vw^{2}}}}
