2 z 2 a 14 + 3 a 14 − z 6 a 12 − 10 z 4 a 12 − 21 z 2 a 12 − 12 a 12 + 2 z 8 a 10 + 16 z 6 a 10 + 41 z 4 a 10 + 43 z 2 a 10 + 17 a 10 − z 10 a 8 − 8 z 8 a 8 − 24 z 6 a 8 − 38 z 4 a 8 − 34 z 2 a 8 − 13 a 8 + z 8 a 6 + 7 z 6 a 6 + 17 z 4 a 6 + 17 z 2 a 6 + 6 a 6 {\displaystyle 2z^{2}a^{14}+3a^{14}-z^{6}a^{12}-10z^{4}a^{12}-21z^{2}a^{12}-12a^{12}+2z^{8}a^{10}+16z^{6}a^{10}+41z^{4}a^{10}+43z^{2}a^{10}+17a^{10}-z^{10}a^{8}-8z^{8}a^{8}-24z^{6}a^{8}-38z^{4}a^{8}-34z^{2}a^{8}-13a^{8}+z^{8}a^{6}+7z^{6}a^{6}+17z^{4}a^{6}+17z^{2}a^{6}+6a^{6}}
