z 6 a 10 − 3 z 4 a 10 + z 2 a 10 + 3 z 7 a 9 − 11 z 5 a 9 + 8 z 3 a 9 − z a 9 + 3 z 8 a 8 − 11 z 6 a 8 + 9 z 4 a 8 − 2 z 2 a 8 + z 9 a 7 − 10 z 5 a 7 + 11 z 3 a 7 − 3 z a 7 + 4 z 8 a 6 − 16 z 6 a 6 + 19 z 4 a 6 − 6 z 2 a 6 + z 9 a 5 − 3 z 7 a 5 + 2 z 5 a 5 + 3 z 3 a 5 − 2 z a 5 + z 8 a 4 − 4 z 6 a 4 + 7 z 4 a 4 − z 2 a 4 − a 4 + z 5 a 3 + 2 z 2 a 2 − 2 a 2 {\displaystyle z^{6}a^{10}-3z^{4}a^{10}+z^{2}a^{10}+3z^{7}a^{9}-11z^{5}a^{9}+8z^{3}a^{9}-za^{9}+3z^{8}a^{8}-11z^{6}a^{8}+9z^{4}a^{8}-2z^{2}a^{8}+z^{9}a^{7}-10z^{5}a^{7}+11z^{3}a^{7}-3za^{7}+4z^{8}a^{6}-16z^{6}a^{6}+19z^{4}a^{6}-6z^{2}a^{6}+z^{9}a^{5}-3z^{7}a^{5}+2z^{5}a^{5}+3z^{3}a^{5}-2za^{5}+z^{8}a^{4}-4z^{6}a^{4}+7z^{4}a^{4}-z^{2}a^{4}-a^{4}+z^{5}a^{3}+2z^{2}a^{2}-2a^{2}}