z 6 a 10 − 3 z 4 a 10 + 2 z 2 a 10 + 3 z 7 a 9 − 10 z 5 a 9 + 9 z 3 a 9 − 2 z a 9 + 3 z 8 a 8 − 7 z 6 a 8 + z 4 a 8 + z 2 a 8 + a 8 + z 9 a 7 + 4 z 7 a 7 − 18 z 5 a 7 + 16 z 3 a 7 − 6 z a 7 + 5 z 8 a 6 − 11 z 6 a 6 + 8 z 4 a 6 − 8 z 2 a 6 + 4 a 6 + z 9 a 5 + 2 z 7 a 5 − 6 z 5 a 5 + 6 z 3 a 5 − 4 z a 5 + 2 z 8 a 4 − 3 z 6 a 4 + 8 z 4 a 4 − 9 z 2 a 4 + 4 a 4 + z 7 a 3 + 2 z 5 a 3 + 4 z 4 a 2 − 2 z 2 a 2 + z 3 a {\displaystyle z^{6}a^{10}-3z^{4}a^{10}+2z^{2}a^{10}+3z^{7}a^{9}-10z^{5}a^{9}+9z^{3}a^{9}-2za^{9}+3z^{8}a^{8}-7z^{6}a^{8}+z^{4}a^{8}+z^{2}a^{8}+a^{8}+z^{9}a^{7}+4z^{7}a^{7}-18z^{5}a^{7}+16z^{3}a^{7}-6za^{7}+5z^{8}a^{6}-11z^{6}a^{6}+8z^{4}a^{6}-8z^{2}a^{6}+4a^{6}+z^{9}a^{5}+2z^{7}a^{5}-6z^{5}a^{5}+6z^{3}a^{5}-4za^{5}+2z^{8}a^{4}-3z^{6}a^{4}+8z^{4}a^{4}-9z^{2}a^{4}+4a^{4}+z^{7}a^{3}+2z^{5}a^{3}+4z^{4}a^{2}-2z^{2}a^{2}+z^{3}a}