a 3 z 9 + a z 9 + a 4 z 8 + 2 a 2 z 8 + z 8 − 7 a 3 z 7 − 7 a z 7 − 7 a 4 z 6 − 14 a 2 z 6 − 7 z 6 + 15 a 3 z 5 + 15 a z 5 + 15 a 4 z 4 + 30 a 2 z 4 + 15 z 4 − a 5 z 3 − 12 a 3 z 3 − 11 a z 3 − a 6 z 2 − 13 a 4 z 2 − 23 a 2 z 2 − 11 z 2 + a 5 z + 3 a 3 z + 2 a z + a 6 + 4 a 4 + 5 a 2 + 3 {\displaystyle a^{3}z^{9}+az^{9}+a^{4}z^{8}+2a^{2}z^{8}+z^{8}-7a^{3}z^{7}-7az^{7}-7a^{4}z^{6}-14a^{2}z^{6}-7z^{6}+15a^{3}z^{5}+15az^{5}+15a^{4}z^{4}+30a^{2}z^{4}+15z^{4}-a^{5}z^{3}-12a^{3}z^{3}-11az^{3}-a^{6}z^{2}-13a^{4}z^{2}-23a^{2}z^{2}-11z^{2}+a^{5}z+3a^{3}z+2az+a^{6}+4a^{4}+5a^{2}+3}