z 3 a 11 − z a 11 + 3 z 4 a 10 − 3 z 2 a 10 + a 10 + z 7 a 9 + z 5 a 9 + z a 9 + 4 z 8 a 8 − 13 z 6 a 8 + 22 z 4 a 8 − 13 z 2 a 8 + 3 a 8 + 5 z 9 a 7 − 17 z 7 a 7 + 23 z 5 a 7 − 13 z 3 a 7 + 3 z a 7 + 2 z 10 a 6 + 3 z 8 a 6 − 31 z 6 a 6 + 47 z 4 a 6 − 27 z 2 a 6 + 5 a 6 + 10 z 9 a 5 − 36 z 7 a 5 + 38 z 5 a 5 − 17 z 3 a 5 + 2 z a 5 + 2 z 10 a 4 + 3 z 8 a 4 − 33 z 6 a 4 + 43 z 4 a 4 − 21 z 2 a 4 + 4 a 4 + 5 z 9 a 3 − 17 z 7 a 3 + 13 z 5 a 3 − 3 z 3 a 3 + z a 3 + 4 z 8 a 2 − 15 z 6 a 2 + 15 z 4 a 2 − 4 z 2 a 2 + z 7 a − 3 z 5 a + 2 z 3 a {\displaystyle z^{3}a^{11}-za^{11}+3z^{4}a^{10}-3z^{2}a^{10}+a^{10}+z^{7}a^{9}+z^{5}a^{9}+za^{9}+4z^{8}a^{8}-13z^{6}a^{8}+22z^{4}a^{8}-13z^{2}a^{8}+3a^{8}+5z^{9}a^{7}-17z^{7}a^{7}+23z^{5}a^{7}-13z^{3}a^{7}+3za^{7}+2z^{10}a^{6}+3z^{8}a^{6}-31z^{6}a^{6}+47z^{4}a^{6}-27z^{2}a^{6}+5a^{6}+10z^{9}a^{5}-36z^{7}a^{5}+38z^{5}a^{5}-17z^{3}a^{5}+2za^{5}+2z^{10}a^{4}+3z^{8}a^{4}-33z^{6}a^{4}+43z^{4}a^{4}-21z^{2}a^{4}+4a^{4}+5z^{9}a^{3}-17z^{7}a^{3}+13z^{5}a^{3}-3z^{3}a^{3}+za^{3}+4z^{8}a^{2}-15z^{6}a^{2}+15z^{4}a^{2}-4z^{2}a^{2}+z^{7}a-3z^{5}a+2z^{3}a}