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