− 3 u 2 v 3 − 7 u 2 v 2 + 6 u 2 v − 2 u 2 + 2 u v 4 − 11 u v 3 + 17 u v 2 − 11 u v + 2 u − 2 v 4 + 6 v 3 − 7 v 2 + 3 v u v 2 {\displaystyle -{\frac {3u^{2}v^{3}-7u^{2}v^{2}+6u^{2}v-2u^{2}+2uv^{4}-11uv^{3}+17uv^{2}-11uv+2u-2v^{4}+6v^{3}-7v^{2}+3v}{uv^{2}}}}
