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