a 6 z 10 + a 4 z 10 + a 7 z 9 + 4 a 5 z 9 + 3 a 3 z 9 − 3 a 6 z 8 + 3 a 2 z 8 − 5 a 7 z 7 − 19 a 5 z 7 − 13 a 3 z 7 + a z 7 − 5 a 6 z 6 − 19 a 4 z 6 − 14 a 2 z 6 + 6 a 7 z 5 + 20 a 5 z 5 + 10 a 3 z 5 − 4 a z 5 + 18 a 6 z 4 + 34 a 4 z 4 + 16 a 2 z 4 − a 9 z 3 − a 7 z 3 + a 5 z 3 + 4 a 3 z 3 + 3 a z 3 − a 8 z 2 − 15 a 6 z 2 − 20 a 4 z 2 − 6 a 2 z 2 + 2 a 9 z − a 7 z − 5 a 5 z − 3 a 3 z − a z + 3 a 6 + 5 a 4 + a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+a^{7}z^{9}+4a^{5}z^{9}+3a^{3}z^{9}-3a^{6}z^{8}+3a^{2}z^{8}-5a^{7}z^{7}-19a^{5}z^{7}-13a^{3}z^{7}+az^{7}-5a^{6}z^{6}-19a^{4}z^{6}-14a^{2}z^{6}+6a^{7}z^{5}+20a^{5}z^{5}+10a^{3}z^{5}-4az^{5}+18a^{6}z^{4}+34a^{4}z^{4}+16a^{2}z^{4}-a^{9}z^{3}-a^{7}z^{3}+a^{5}z^{3}+4a^{3}z^{3}+3az^{3}-a^{8}z^{2}-15a^{6}z^{2}-20a^{4}z^{2}-6a^{2}z^{2}+2a^{9}z-a^{7}z-5a^{5}z-3a^{3}z-az+3a^{6}+5a^{4}+a^{2}}