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 − 17 a 7 z 7 − 8 a 5 z 7 + a 3 z 7 + 20 a 8 z 6 + 19 a 6 z 6 + 2 a 4 z 6 + 3 a 2 z 6 + 21 a 9 z 5 + 44 a 7 z 5 + 21 a 5 z 5 + a 3 z 5 + 3 a z 5 − 19 a 8 z 4 − 15 a 6 z 4 − 2 a 4 z 4 − 5 a 2 z 4 + z 4 − 22 a 9 z 3 − 41 a 7 z 3 − 17 a 5 z 3 − 3 a 3 z 3 − 5 a z 3 + 7 a 8 z 2 + 6 a 6 z 2 + a 4 z 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^{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}-17a^{7}z^{7}-8a^{5}z^{7}+a^{3}z^{7}+20a^{8}z^{6}+19a^{6}z^{6}+2a^{4}z^{6}+3a^{2}z^{6}+21a^{9}z^{5}+44a^{7}z^{5}+21a^{5}z^{5}+a^{3}z^{5}+3az^{5}-19a^{8}z^{4}-15a^{6}z^{4}-2a^{4}z^{4}-5a^{2}z^{4}+z^{4}-22a^{9}z^{3}-41a^{7}z^{3}-17a^{5}z^{3}-3a^{3}z^{3}-5az^{3}+7a^{8}z^{2}+6a^{6}z^{2}+a^{4}z^{2}+a^{2}z^{2}-z^{2}+8a^{9}z+12a^{7}z+5a^{5}z+a^{3}z-2a^{8}-2a^{6}+a^{4}}