a 6 z 10 + a 4 z 10 + 2 a 7 z 9 + 3 a 5 z 9 + a 3 z 9 + a 8 z 8 − 4 a 6 z 8 − 5 a 4 z 8 − 12 a 7 z 7 − 16 a 5 z 7 − 4 a 3 z 7 − 6 a 8 z 6 + a 6 z 6 + 9 a 4 z 6 + 2 a 2 z 6 + 22 a 7 z 5 + 24 a 5 z 5 + 2 a 3 z 5 + 11 a 8 z 4 + 5 a 6 z 4 − 15 a 4 z 4 − 9 a 2 z 4 − 14 a 7 z 3 − 13 a 5 z 3 + a 3 z 3 − 6 a 8 z 2 + 14 a 4 z 2 + 8 a 2 z 2 + 3 a 7 z + 3 a 5 z − a 3 z − a z − 2 a 6 − 4 a 4 − 2 a 2 + 1 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+2a^{7}z^{9}+3a^{5}z^{9}+a^{3}z^{9}+a^{8}z^{8}-4a^{6}z^{8}-5a^{4}z^{8}-12a^{7}z^{7}-16a^{5}z^{7}-4a^{3}z^{7}-6a^{8}z^{6}+a^{6}z^{6}+9a^{4}z^{6}+2a^{2}z^{6}+22a^{7}z^{5}+24a^{5}z^{5}+2a^{3}z^{5}+11a^{8}z^{4}+5a^{6}z^{4}-15a^{4}z^{4}-9a^{2}z^{4}-14a^{7}z^{3}-13a^{5}z^{3}+a^{3}z^{3}-6a^{8}z^{2}+14a^{4}z^{2}+8a^{2}z^{2}+3a^{7}z+3a^{5}z-a^{3}z-az-2a^{6}-4a^{4}-2a^{2}+1}