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