a 7 z 11 + a 5 z 11 + 2 a 8 z 10 + 5 a 6 z 10 + 3 a 4 z 10 + a 9 z 9 − a 7 z 9 + a 5 z 9 + 3 a 3 z 9 − 12 a 8 z 8 − 26 a 6 z 8 − 13 a 4 z 8 + a 2 z 8 − 7 a 9 z 7 − 19 a 7 z 7 − 27 a 5 z 7 − 15 a 3 z 7 + 23 a 8 z 6 + 34 a 6 z 6 + 6 a 4 z 6 − 5 a 2 z 6 + 18 a 9 z 5 + 51 a 7 z 5 + 49 a 5 z 5 + 16 a 3 z 5 − 16 a 8 z 4 − 6 a 6 z 4 + 13 a 4 z 4 + 3 a 2 z 4 − 20 a 9 z 3 − 43 a 7 z 3 − 25 a 5 z 3 − 5 a 3 z 3 − 3 a z 3 + 4 a 8 z 2 − 3 a 6 z 2 − 8 a 4 z 2 − 2 a 2 z 2 − z 2 + 8 a 9 z + 12 a 7 z + 5 a 5 z + a 3 z − 2 a 8 − 2 a 6 + a 4 {\displaystyle a^{7}z^{11}+a^{5}z^{11}+2a^{8}z^{10}+5a^{6}z^{10}+3a^{4}z^{10}+a^{9}z^{9}-a^{7}z^{9}+a^{5}z^{9}+3a^{3}z^{9}-12a^{8}z^{8}-26a^{6}z^{8}-13a^{4}z^{8}+a^{2}z^{8}-7a^{9}z^{7}-19a^{7}z^{7}-27a^{5}z^{7}-15a^{3}z^{7}+23a^{8}z^{6}+34a^{6}z^{6}+6a^{4}z^{6}-5a^{2}z^{6}+18a^{9}z^{5}+51a^{7}z^{5}+49a^{5}z^{5}+16a^{3}z^{5}-16a^{8}z^{4}-6a^{6}z^{4}+13a^{4}z^{4}+3a^{2}z^{4}-20a^{9}z^{3}-43a^{7}z^{3}-25a^{5}z^{3}-5a^{3}z^{3}-3az^{3}+4a^{8}z^{2}-3a^{6}z^{2}-8a^{4}z^{2}-2a^{2}z^{2}-z^{2}+8a^{9}z+12a^{7}z+5a^{5}z+a^{3}z-2a^{8}-2a^{6}+a^{4}}