z 6 a 10 − 3 z 4 a 10 + 2 z 2 a 10 + 3 z 7 a 9 − 9 z 5 a 9 + 7 z 3 a 9 − 2 z a 9 + 4 z 8 a 8 − 11 z 6 a 8 + 7 z 4 a 8 − 3 z 2 a 8 + a 8 + 2 z 9 a 7 − 11 z 5 a 7 + 8 z 3 a 7 − 2 z a 7 + 8 z 8 a 6 − 23 z 6 a 6 + 23 z 4 a 6 − 12 z 2 a 6 + 2 a 6 + 2 z 9 a 5 − z 7 a 5 − 2 z 5 a 5 + 2 z a 5 + 4 z 8 a 4 − 11 z 6 a 4 + 18 z 4 a 4 − 9 z 2 a 4 + 2 z 7 a 3 + 2 z a 3 + 5 z 4 a 2 − 2 z 2 a 2 − 2 a 2 + z 3 a {\displaystyle z^{6}a^{10}-3z^{4}a^{10}+2z^{2}a^{10}+3z^{7}a^{9}-9z^{5}a^{9}+7z^{3}a^{9}-2za^{9}+4z^{8}a^{8}-11z^{6}a^{8}+7z^{4}a^{8}-3z^{2}a^{8}+a^{8}+2z^{9}a^{7}-11z^{5}a^{7}+8z^{3}a^{7}-2za^{7}+8z^{8}a^{6}-23z^{6}a^{6}+23z^{4}a^{6}-12z^{2}a^{6}+2a^{6}+2z^{9}a^{5}-z^{7}a^{5}-2z^{5}a^{5}+2za^{5}+4z^{8}a^{4}-11z^{6}a^{4}+18z^{4}a^{4}-9z^{2}a^{4}+2z^{7}a^{3}+2za^{3}+5z^{4}a^{2}-2z^{2}a^{2}-2a^{2}+z^{3}a}
