a 6 z 10 + a 4 z 10 + a 7 z 9 + 5 a 5 z 9 + 4 a 3 z 9 + 7 a 4 z 8 + 7 a 2 z 8 − 7 a 5 z 7 + 7 a z 7 + 4 a 8 z 6 + 5 a 6 z 6 − 12 a 4 z 6 − 9 a 2 z 6 + 4 z 6 + a 9 z 5 + 3 a 7 z 5 + 8 a 5 z 5 − 6 a 3 z 5 − 11 a z 5 + z 5 a − 1 − 7 a 8 z 4 − 8 a 6 z 4 + 5 a 4 z 4 − 6 z 4 − 2 a 9 z 3 − 7 a 7 z 3 − 8 a 5 z 3 + a 3 z 3 + 3 a z 3 − z 3 a − 1 + 2 a 8 z 2 + 2 a 6 z 2 + a 4 z 2 + 3 a 2 z 2 + 2 z 2 + a 9 z + 3 a 7 z + 4 a 5 z + 2 a 3 z − a 4 − 2 a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+a^{7}z^{9}+5a^{5}z^{9}+4a^{3}z^{9}+7a^{4}z^{8}+7a^{2}z^{8}-7a^{5}z^{7}+7az^{7}+4a^{8}z^{6}+5a^{6}z^{6}-12a^{4}z^{6}-9a^{2}z^{6}+4z^{6}+a^{9}z^{5}+3a^{7}z^{5}+8a^{5}z^{5}-6a^{3}z^{5}-11az^{5}+z^{5}a^{-1}-7a^{8}z^{4}-8a^{6}z^{4}+5a^{4}z^{4}-6z^{4}-2a^{9}z^{3}-7a^{7}z^{3}-8a^{5}z^{3}+a^{3}z^{3}+3az^{3}-z^{3}a^{-1}+2a^{8}z^{2}+2a^{6}z^{2}+a^{4}z^{2}+3a^{2}z^{2}+2z^{2}+a^{9}z+3a^{7}z+4a^{5}z+2a^{3}z-a^{4}-2a^{2}}
