a 6 z 10 + a 4 z 10 + 2 a 7 z 9 + 5 a 5 z 9 + 3 a 3 z 9 + a 8 z 8 − 2 a 6 z 8 + 3 a 2 z 8 − 12 a 7 z 7 − 28 a 5 z 7 − 15 a 3 z 7 + a z 7 − 6 a 8 z 6 − 11 a 6 z 6 − 20 a 4 z 6 − 15 a 2 z 6 + 23 a 7 z 5 + 48 a 5 z 5 + 21 a 3 z 5 − 4 a z 5 + 11 a 8 z 4 + 28 a 6 z 4 + 36 a 4 z 4 + 19 a 2 z 4 − 18 a 7 z 3 − 35 a 5 z 3 − 15 a 3 z 3 + 2 a z 3 − 7 a 8 z 2 − 18 a 6 z 2 − 17 a 4 z 2 − 6 a 2 z 2 + 5 a 7 z + 11 a 5 z + 7 a 3 z + a z + a 8 + 2 a 6 − 2 a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+2a^{7}z^{9}+5a^{5}z^{9}+3a^{3}z^{9}+a^{8}z^{8}-2a^{6}z^{8}+3a^{2}z^{8}-12a^{7}z^{7}-28a^{5}z^{7}-15a^{3}z^{7}+az^{7}-6a^{8}z^{6}-11a^{6}z^{6}-20a^{4}z^{6}-15a^{2}z^{6}+23a^{7}z^{5}+48a^{5}z^{5}+21a^{3}z^{5}-4az^{5}+11a^{8}z^{4}+28a^{6}z^{4}+36a^{4}z^{4}+19a^{2}z^{4}-18a^{7}z^{3}-35a^{5}z^{3}-15a^{3}z^{3}+2az^{3}-7a^{8}z^{2}-18a^{6}z^{2}-17a^{4}z^{2}-6a^{2}z^{2}+5a^{7}z+11a^{5}z+7a^{3}z+az+a^{8}+2a^{6}-2a^{2}}
