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