2 u v w 3 − 4 u v w 2 + 4 u v w − 2 u v − 2 u w 3 + 6 u w 2 − 7 u w + 4 u − 4 v w 3 + 7 v w 2 − 6 v w + 2 v + 2 w 3 − 4 w 2 + 4 w − 2 u v w 3 / 2 {\displaystyle {\frac {2uvw^{3}-4uvw^{2}+4uvw-2uv-2uw^{3}+6uw^{2}-7uw+4u-4vw^{3}+7vw^{2}-6vw+2v+2w^{3}-4w^{2}+4w-2}{{\sqrt {u}}{\sqrt {v}}w^{3/2}}}}
