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