z 6 a 10 − z 4 a 10 + 5 z 7 a 9 − 9 z 5 a 9 + 3 z 3 a 9 + z a 9 + 10 z 8 a 8 − 21 z 6 a 8 + 10 z 4 a 8 − 2 z 2 a 8 + 10 z 9 a 7 − 17 z 7 a 7 + 2 z 5 a 7 − z 3 a 7 + z a 7 + 4 z 10 a 6 + 10 z 8 a 6 − 41 z 6 a 6 + 33 z 4 a 6 − 12 z 2 a 6 + 2 a 6 + 19 z 9 a 5 − 46 z 7 a 5 + 42 z 5 a 5 − 19 z 3 a 5 + 3 z a 5 + 4 z 10 a 4 + 6 z 8 a 4 − 29 z 6 a 4 + 37 z 4 a 4 − 18 z 2 a 4 + 4 a 4 + 9 z 9 a 3 − 23 z 7 a 3 + 38 z 5 a 3 − 24 z 3 a 3 + 5 z a 3 + 6 z 8 a 2 − 10 z 6 a 2 + 18 z 4 a 2 − 12 z 2 a 2 + 2 a 2 + z 7 a + 7 z 5 a − 9 z 3 a + 2 z a + 3 z 4 − 4 z 2 + 1 {\displaystyle z^{6}a^{10}-z^{4}a^{10}+5z^{7}a^{9}-9z^{5}a^{9}+3z^{3}a^{9}+za^{9}+10z^{8}a^{8}-21z^{6}a^{8}+10z^{4}a^{8}-2z^{2}a^{8}+10z^{9}a^{7}-17z^{7}a^{7}+2z^{5}a^{7}-z^{3}a^{7}+za^{7}+4z^{10}a^{6}+10z^{8}a^{6}-41z^{6}a^{6}+33z^{4}a^{6}-12z^{2}a^{6}+2a^{6}+19z^{9}a^{5}-46z^{7}a^{5}+42z^{5}a^{5}-19z^{3}a^{5}+3za^{5}+4z^{10}a^{4}+6z^{8}a^{4}-29z^{6}a^{4}+37z^{4}a^{4}-18z^{2}a^{4}+4a^{4}+9z^{9}a^{3}-23z^{7}a^{3}+38z^{5}a^{3}-24z^{3}a^{3}+5za^{3}+6z^{8}a^{2}-10z^{6}a^{2}+18z^{4}a^{2}-12z^{2}a^{2}+2a^{2}+z^{7}a+7z^{5}a-9z^{3}a+2za+3z^{4}-4z^{2}+1}