a 6 z 10 + a 4 z 10 + 2 a 7 z 9 + 4 a 5 z 9 + 2 a 3 z 9 + a 8 z 8 + a 2 z 8 − 6 a 7 z 7 − 11 a 5 z 7 − 5 a 3 z 7 − 5 a 6 z 6 − 4 a 4 z 6 + a 2 z 6 + 3 a 9 z 5 + 10 a 7 z 5 + 11 a 5 z 5 + 8 a 3 z 5 + 4 a z 5 − 5 a 8 z 4 + 9 a 6 z 4 + 12 a 4 z 4 − a 2 z 4 + z 4 − 9 a 9 z 3 − 12 a 7 z 3 + 2 a 5 z 3 − 5 a z 3 + 2 a 8 z 2 − 6 a 6 z 2 − 9 a 4 z 2 − 2 a 2 z 2 − z 2 + 5 a 9 z + 4 a 7 z − 3 a 5 z − 3 a 3 z − a z − a 8 + a 6 + 4 a 4 + a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+2a^{7}z^{9}+4a^{5}z^{9}+2a^{3}z^{9}+a^{8}z^{8}+a^{2}z^{8}-6a^{7}z^{7}-11a^{5}z^{7}-5a^{3}z^{7}-5a^{6}z^{6}-4a^{4}z^{6}+a^{2}z^{6}+3a^{9}z^{5}+10a^{7}z^{5}+11a^{5}z^{5}+8a^{3}z^{5}+4az^{5}-5a^{8}z^{4}+9a^{6}z^{4}+12a^{4}z^{4}-a^{2}z^{4}+z^{4}-9a^{9}z^{3}-12a^{7}z^{3}+2a^{5}z^{3}-5az^{3}+2a^{8}z^{2}-6a^{6}z^{2}-9a^{4}z^{2}-2a^{2}z^{2}-z^{2}+5a^{9}z+4a^{7}z-3a^{5}z-3a^{3}z-az-a^{8}+a^{6}+4a^{4}+a^{2}}