− 2 v u 5 + 2 u 5 + 5 v u 4 − 5 u 4 − 8 v u 3 + 8 u 3 + 8 v u 2 − 8 u 2 − 5 v u + 5 u + 2 v − 2 {\displaystyle -2vu^{5}+2u^{5}+5vu^{4}-5u^{4}-8vu^{3}+8u^{3}+8vu^{2}-8u^{2}-5vu+5u+2v-2}
