3 z 4 a 12 − 2 z 2 a 12 + z 7 a 11 + 9 z 5 a 11 − 11 z 3 a 11 + 4 z a 11 + 6 z 8 a 10 − 4 z 6 a 10 + 6 z 4 a 10 − 2 z 2 a 10 − 2 a 10 + 11 z 9 a 9 − 27 z 7 a 9 + 52 z 5 a 9 − 50 z 3 a 9 + 19 z a 9 + 8 z 10 a 8 − 9 z 8 a 8 + 6 z 6 a 8 − 10 z 4 a 8 + 14 z 2 a 8 − 8 a 8 + 2 z 11 a 7 + 20 z 9 a 7 − 66 z 7 a 7 + 85 z 5 a 7 − 65 z 3 a 7 + 22 z a 7 + 14 z 10 a 6 − 24 z 8 a 6 + z 6 a 6 + z 4 a 6 + 10 z 2 a 6 − 7 a 6 + 2 z 11 a 5 + 16 z 9 a 5 − 57 z 7 a 5 + 56 z 5 a 5 − 29 z 3 a 5 + 8 z a 5 + 6 z 10 a 4 − 5 z 8 a 4 − 21 z 6 a 4 + 26 z 4 a 4 − 9 z 2 a 4 + a 4 + 7 z 9 a 3 − 18 z 7 a 3 + 11 z 5 a 3 + 4 z 8 a 2 − 12 z 6 a 2 + 12 z 4 a 2 − 5 z 2 a 2 + a 2 + z 7 a − 3 z 5 a + 3 z 3 a − z a {\displaystyle 3z^{4}a^{12}-2z^{2}a^{12}+z^{7}a^{11}+9z^{5}a^{11}-11z^{3}a^{11}+4za^{11}+6z^{8}a^{10}-4z^{6}a^{10}+6z^{4}a^{10}-2z^{2}a^{10}-2a^{10}+11z^{9}a^{9}-27z^{7}a^{9}+52z^{5}a^{9}-50z^{3}a^{9}+19za^{9}+8z^{10}a^{8}-9z^{8}a^{8}+6z^{6}a^{8}-10z^{4}a^{8}+14z^{2}a^{8}-8a^{8}+2z^{11}a^{7}+20z^{9}a^{7}-66z^{7}a^{7}+85z^{5}a^{7}-65z^{3}a^{7}+22za^{7}+14z^{10}a^{6}-24z^{8}a^{6}+z^{6}a^{6}+z^{4}a^{6}+10z^{2}a^{6}-7a^{6}+2z^{11}a^{5}+16z^{9}a^{5}-57z^{7}a^{5}+56z^{5}a^{5}-29z^{3}a^{5}+8za^{5}+6z^{10}a^{4}-5z^{8}a^{4}-21z^{6}a^{4}+26z^{4}a^{4}-9z^{2}a^{4}+a^{4}+7z^{9}a^{3}-18z^{7}a^{3}+11z^{5}a^{3}+4z^{8}a^{2}-12z^{6}a^{2}+12z^{4}a^{2}-5z^{2}a^{2}+a^{2}+z^{7}a-3z^{5}a+3z^{3}a-za}