a 8 z 10 + a 6 z 10 + a 9 z 9 + 2 a 7 z 9 + a 5 z 9 − 8 a 8 z 8 − 8 a 6 z 8 − 8 a 9 z 7 − 16 a 7 z 7 − 8 a 5 z 7 + 21 a 8 z 6 + 20 a 6 z 6 + a 2 z 6 + 21 a 9 z 5 + 39 a 7 z 5 + 19 a 5 z 5 + 3 a 3 z 5 + 2 a z 5 − 23 a 8 z 4 − 21 a 6 z 4 + 2 a 4 z 4 + a 2 z 4 + z 4 − 21 a 9 z 3 − 34 a 7 z 3 − 14 a 5 z 3 − 5 a 3 z 3 − 4 a z 3 + 11 a 8 z 2 + 13 a 6 z 2 − a 4 z 2 − 5 a 2 z 2 − 2 z 2 + 6 a 9 z + 9 a 7 z + 4 a 5 z + 2 a 3 z + a z − 2 a 8 − 3 a 6 + a 2 + 1 {\displaystyle a^{8}z^{10}+a^{6}z^{10}+a^{9}z^{9}+2a^{7}z^{9}+a^{5}z^{9}-8a^{8}z^{8}-8a^{6}z^{8}-8a^{9}z^{7}-16a^{7}z^{7}-8a^{5}z^{7}+21a^{8}z^{6}+20a^{6}z^{6}+a^{2}z^{6}+21a^{9}z^{5}+39a^{7}z^{5}+19a^{5}z^{5}+3a^{3}z^{5}+2az^{5}-23a^{8}z^{4}-21a^{6}z^{4}+2a^{4}z^{4}+a^{2}z^{4}+z^{4}-21a^{9}z^{3}-34a^{7}z^{3}-14a^{5}z^{3}-5a^{3}z^{3}-4az^{3}+11a^{8}z^{2}+13a^{6}z^{2}-a^{4}z^{2}-5a^{2}z^{2}-2z^{2}+6a^{9}z+9a^{7}z+4a^{5}z+2a^{3}z+az-2a^{8}-3a^{6}+a^{2}+1}