− 3 u 2 v 2 − 5 u 2 v + 2 u 2 − 5 u v 2 + 9 u v − 5 u + 2 v 2 − 5 v + 3 u v {\displaystyle -{\frac {3u^{2}v^{2}-5u^{2}v+2u^{2}-5uv^{2}+9uv-5u+2v^{2}-5v+3}{uv}}}
