3 u v 3 − 11 u v 2 + 14 u v − 7 u − 7 v 3 + 14 v 2 − 11 v + 3 u v 3 / 2 {\displaystyle {\frac {3uv^{3}-11uv^{2}+14uv-7u-7v^{3}+14v^{2}-11v+3}{{\sqrt {u}}v^{3/2}}}}