a 5 z 9 + a 3 z 9 + a 6 z 8 + 3 a 4 z 8 + 2 a 2 z 8 − 3 a 5 z 7 − 2 a 3 z 7 + a z 7 − 2 a 6 z 6 − 8 a 4 z 6 − 6 a 2 z 6 + 3 a 7 z 5 + 8 a 5 z 5 + 6 a 3 z 5 + a z 5 + a 8 z 4 + 4 a 6 z 4 + 12 a 4 z 4 + 12 a 2 z 4 + 3 z 4 − 5 a 7 z 3 − 6 a 5 z 3 − 6 a 3 z 3 − 5 a z 3 − 2 a 8 z 2 − 2 a 6 z 2 − 5 a 4 z 2 − 11 a 2 z 2 − 6 z 2 + a 7 z + 2 a 5 z + 2 a 3 z + a z + a 4 + 2 a 2 + 2 {\displaystyle a^{5}z^{9}+a^{3}z^{9}+a^{6}z^{8}+3a^{4}z^{8}+2a^{2}z^{8}-3a^{5}z^{7}-2a^{3}z^{7}+az^{7}-2a^{6}z^{6}-8a^{4}z^{6}-6a^{2}z^{6}+3a^{7}z^{5}+8a^{5}z^{5}+6a^{3}z^{5}+az^{5}+a^{8}z^{4}+4a^{6}z^{4}+12a^{4}z^{4}+12a^{2}z^{4}+3z^{4}-5a^{7}z^{3}-6a^{5}z^{3}-6a^{3}z^{3}-5az^{3}-2a^{8}z^{2}-2a^{6}z^{2}-5a^{4}z^{2}-11a^{2}z^{2}-6z^{2}+a^{7}z+2a^{5}z+2a^{3}z+az+a^{4}+2a^{2}+2}
