− u v 5 − 5 u v 4 + 8 u v 3 − 4 u v 2 + u v + v 4 − 4 v 3 + 8 v 2 − 5 v + 1 u v 5 / 2 {\displaystyle -{\frac {uv^{5}-5uv^{4}+8uv^{3}-4uv^{2}+uv+v^{4}-4v^{3}+8v^{2}-5v+1}{{\sqrt {u}}v^{5/2}}}}
