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