z 6 a 10 − 2 z 4 a 10 + z 2 a 10 + 4 z 7 a 9 − 10 z 5 a 9 + 7 z 3 a 9 − z a 9 + 6 z 8 a 8 − 13 z 6 a 8 + 5 z 4 a 8 + 4 z 9 a 7 − 19 z 5 a 7 + 16 z 3 a 7 − 5 z a 7 + z 10 a 6 + 10 z 8 a 6 − 25 z 6 a 6 + 13 z 4 a 6 − 3 z 2 a 6 + a 6 + 6 z 9 a 5 − 4 z 7 a 5 − 11 z 5 a 5 + 13 z 3 a 5 − 5 z a 5 + z 10 a 4 + 5 z 8 a 4 − 8 z 6 a 4 + 4 z 4 a 4 + a 4 + 2 z 9 a 3 + 2 z 5 a 3 + z 3 a 3 − z a 3 + z 8 a 2 + 3 z 6 a 2 − z 4 a 2 + z 2 a 2 − a 2 + 4 z 5 a − 3 z 3 a + z 4 − z 2 {\displaystyle z^{6}a^{10}-2z^{4}a^{10}+z^{2}a^{10}+4z^{7}a^{9}-10z^{5}a^{9}+7z^{3}a^{9}-za^{9}+6z^{8}a^{8}-13z^{6}a^{8}+5z^{4}a^{8}+4z^{9}a^{7}-19z^{5}a^{7}+16z^{3}a^{7}-5za^{7}+z^{10}a^{6}+10z^{8}a^{6}-25z^{6}a^{6}+13z^{4}a^{6}-3z^{2}a^{6}+a^{6}+6z^{9}a^{5}-4z^{7}a^{5}-11z^{5}a^{5}+13z^{3}a^{5}-5za^{5}+z^{10}a^{4}+5z^{8}a^{4}-8z^{6}a^{4}+4z^{4}a^{4}+a^{4}+2z^{9}a^{3}+2z^{5}a^{3}+z^{3}a^{3}-za^{3}+z^{8}a^{2}+3z^{6}a^{2}-z^{4}a^{2}+z^{2}a^{2}-a^{2}+4z^{5}a-3z^{3}a+z^{4}-z^{2}}
