z 4 a 12 − z 2 a 12 + 4 z 5 a 11 − 5 z 3 a 11 + 2 z a 11 + z 8 a 10 + 3 z 6 a 10 − 2 z 4 a 10 + z 2 a 10 − a 10 + 4 z 9 a 9 − 11 z 7 a 9 + 25 z 5 a 9 − 20 z 3 a 9 + 6 z a 9 + 5 z 10 a 8 − 15 z 8 a 8 + 28 z 6 a 8 − 24 z 4 a 8 + 13 z 2 a 8 − 3 a 8 + 2 z 11 a 7 + 5 z 9 a 7 − 29 z 7 a 7 + 44 z 5 a 7 − 25 z 3 a 7 + 4 z a 7 + 11 z 10 a 6 − 33 z 8 a 6 + 36 z 6 a 6 − 25 z 4 a 6 + 11 z 2 a 6 − a 6 + 2 z 11 a 5 + 8 z 9 a 5 − 41 z 7 a 5 + 44 z 5 a 5 − 18 z 3 a 5 + z a 5 + 6 z 10 a 4 − 13 z 8 a 4 − 2 z 6 a 4 + 8 z 4 a 4 − 4 z 2 a 4 + 2 a 4 + 7 z 9 a 3 − 22 z 7 a 3 + 18 z 5 a 3 − 6 z 3 a 3 + z a 3 + 4 z 8 a 2 − 13 z 6 a 2 + 12 z 4 a 2 − 4 z 2 a 2 + z 7 a − 3 z 5 a + 2 z 3 a {\displaystyle z^{4}a^{12}-z^{2}a^{12}+4z^{5}a^{11}-5z^{3}a^{11}+2za^{11}+z^{8}a^{10}+3z^{6}a^{10}-2z^{4}a^{10}+z^{2}a^{10}-a^{10}+4z^{9}a^{9}-11z^{7}a^{9}+25z^{5}a^{9}-20z^{3}a^{9}+6za^{9}+5z^{10}a^{8}-15z^{8}a^{8}+28z^{6}a^{8}-24z^{4}a^{8}+13z^{2}a^{8}-3a^{8}+2z^{11}a^{7}+5z^{9}a^{7}-29z^{7}a^{7}+44z^{5}a^{7}-25z^{3}a^{7}+4za^{7}+11z^{10}a^{6}-33z^{8}a^{6}+36z^{6}a^{6}-25z^{4}a^{6}+11z^{2}a^{6}-a^{6}+2z^{11}a^{5}+8z^{9}a^{5}-41z^{7}a^{5}+44z^{5}a^{5}-18z^{3}a^{5}+za^{5}+6z^{10}a^{4}-13z^{8}a^{4}-2z^{6}a^{4}+8z^{4}a^{4}-4z^{2}a^{4}+2a^{4}+7z^{9}a^{3}-22z^{7}a^{3}+18z^{5}a^{3}-6z^{3}a^{3}+za^{3}+4z^{8}a^{2}-13z^{6}a^{2}+12z^{4}a^{2}-4z^{2}a^{2}+z^{7}a-3z^{5}a+2z^{3}a}