z 7 a 11 − 4 z 5 a 11 + 5 z 3 a 11 − 2 z a 11 + 3 z 8 a 10 − 12 z 6 a 10 + 12 z 4 a 10 − 3 z 2 a 10 + 3 z 9 a 9 − 10 z 7 a 9 + 4 z 5 a 9 + 3 z 3 a 9 + z a 9 + z 10 a 8 + z 8 a 8 − 14 z 6 a 8 + 12 z 4 a 8 + z 2 a 8 − 2 a 8 + 4 z 9 a 7 − 14 z 7 a 7 + 12 z 5 a 7 − 6 z 3 a 7 + 3 z a 7 + z 10 a 6 − 2 z 8 a 6 − z 6 a 6 + z 4 a 6 + z 2 a 6 − 2 a 6 + z 9 a 5 − 3 z 7 a 5 + 4 z 5 a 5 − 2 z 3 a 5 + z 6 a 4 + z 4 a 4 − 2 z 2 a 4 + a 4 + 2 z 3 a 3 + z 2 a 2 {\displaystyle z^{7}a^{11}-4z^{5}a^{11}+5z^{3}a^{11}-2za^{11}+3z^{8}a^{10}-12z^{6}a^{10}+12z^{4}a^{10}-3z^{2}a^{10}+3z^{9}a^{9}-10z^{7}a^{9}+4z^{5}a^{9}+3z^{3}a^{9}+za^{9}+z^{10}a^{8}+z^{8}a^{8}-14z^{6}a^{8}+12z^{4}a^{8}+z^{2}a^{8}-2a^{8}+4z^{9}a^{7}-14z^{7}a^{7}+12z^{5}a^{7}-6z^{3}a^{7}+3za^{7}+z^{10}a^{6}-2z^{8}a^{6}-z^{6}a^{6}+z^{4}a^{6}+z^{2}a^{6}-2a^{6}+z^{9}a^{5}-3z^{7}a^{5}+4z^{5}a^{5}-2z^{3}a^{5}+z^{6}a^{4}+z^{4}a^{4}-2z^{2}a^{4}+a^{4}+2z^{3}a^{3}+z^{2}a^{2}}