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