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