( w − 1 ) ( x − 1 ) 2 ( u v x + u ( − v ) − u x + 2 u − 2 v x + v + x − 1 ) u v w x 3 / 2 {\displaystyle {\frac {(w-1)(x-1)^{2}(uvx+u(-v)-ux+2u-2vx+v+x-1)}{{\sqrt {u}}{\sqrt {v}}{\sqrt {w}}x^{3/2}}}}
