2 u v 2 w 2 − 3 u v 2 w + u v 2 − 3 u v w 2 + 7 u v w − 4 u v + u w 2 − 4 u w + 4 u − 4 v 2 w 2 + 4 v 2 w − v 2 + 4 v w 2 − 7 v w + 3 v − w 2 + 3 w − 2 u v w {\displaystyle {\frac {2uv^{2}w^{2}-3uv^{2}w+uv^{2}-3uvw^{2}+7uvw-4uv+uw^{2}-4uw+4u-4v^{2}w^{2}+4v^{2}w-v^{2}+4vw^{2}-7vw+3v-w^{2}+3w-2}{{\sqrt {u}}vw}}}
