( u − 1 ) ( w − 1 ) 2 ( w + 1 ) ( v + w 2 ) u v w 5 / 2 {\displaystyle {\frac {(u-1)(w-1)^{2}(w+1)\left(v+w^{2}\right)}{{\sqrt {u}}{\sqrt {v}}w^{5/2}}}}
