− 2 u v 6 + 3 u v 5 − 4 u v 4 + 4 u v 3 − 3 u v 2 + 2 u v − u − v 7 + 2 v 6 − 3 v 5 + 4 v 4 − 4 v 3 + 3 v 2 − 2 v u v 7 / 2 {\displaystyle {\frac {-2uv^{6}+3uv^{5}-4uv^{4}+4uv^{3}-3uv^{2}+2uv-u-v^{7}+2v^{6}-3v^{5}+4v^{4}-4v^{3}+3v^{2}-2v}{{\sqrt {u}}v^{7/2}}}}
