z 7 a 11 − 2 z 5 a 11 + z 3 a 11 + 5 z 8 a 10 − 12 z 6 a 10 + 9 z 4 a 10 − 2 z 2 a 10 + 11 z 9 a 9 − 29 z 7 a 9 + 23 z 5 a 9 − 7 z 3 a 9 + 3 z a 9 + 11 z 10 a 8 − 19 z 8 a 8 − 6 z 6 a 8 + 13 z 4 a 8 + z 2 a 8 − 2 a 8 + 4 z 11 a 7 + 18 z 9 a 7 − 72 z 7 a 7 + 68 z 5 a 7 − 33 z 3 a 7 + 8 z a 7 + 22 z 10 a 6 − 46 z 8 a 6 + 29 z 6 a 6 − 31 z 4 a 6 + 25 z 2 a 6 − 7 a 6 + 4 z 11 a 5 + 17 z 9 a 5 − 54 z 7 a 5 + 50 z 5 a 5 − 31 z 3 a 5 + 8 z a 5 + 11 z 10 a 4 − 18 z 8 a 4 + 32 z 6 a 4 − 52 z 4 a 4 + 38 z 2 a 4 − 9 a 4 + 10 z 9 a 3 − 11 z 7 a 3 + 14 z 5 a 3 − 10 z 3 a 3 + 4 z a 3 + 4 z 8 a 2 + 9 z 6 a 2 − 14 z 4 a 2 + 14 z 2 a 2 − 5 a 2 + z 7 a + 7 z 5 a − 4 z 3 a + z a + 3 z 4 − 2 z 2 {\displaystyle z^{7}a^{11}-2z^{5}a^{11}+z^{3}a^{11}+5z^{8}a^{10}-12z^{6}a^{10}+9z^{4}a^{10}-2z^{2}a^{10}+11z^{9}a^{9}-29z^{7}a^{9}+23z^{5}a^{9}-7z^{3}a^{9}+3za^{9}+11z^{10}a^{8}-19z^{8}a^{8}-6z^{6}a^{8}+13z^{4}a^{8}+z^{2}a^{8}-2a^{8}+4z^{11}a^{7}+18z^{9}a^{7}-72z^{7}a^{7}+68z^{5}a^{7}-33z^{3}a^{7}+8za^{7}+22z^{10}a^{6}-46z^{8}a^{6}+29z^{6}a^{6}-31z^{4}a^{6}+25z^{2}a^{6}-7a^{6}+4z^{11}a^{5}+17z^{9}a^{5}-54z^{7}a^{5}+50z^{5}a^{5}-31z^{3}a^{5}+8za^{5}+11z^{10}a^{4}-18z^{8}a^{4}+32z^{6}a^{4}-52z^{4}a^{4}+38z^{2}a^{4}-9a^{4}+10z^{9}a^{3}-11z^{7}a^{3}+14z^{5}a^{3}-10z^{3}a^{3}+4za^{3}+4z^{8}a^{2}+9z^{6}a^{2}-14z^{4}a^{2}+14z^{2}a^{2}-5a^{2}+z^{7}a+7z^{5}a-4z^{3}a+za+3z^{4}-2z^{2}}