a 6 z 10 + a 4 z 10 − a 8 z 8 + 7 a 6 z 8 + 8 a 4 z 8 − a 2 z 8 − 6 a 8 z 6 + 16 a 6 z 6 + 24 a 4 z 6 − 7 a 2 z 6 − 11 a 8 z 4 + 14 a 6 z 4 + 36 a 4 z 4 − 16 a 2 z 4 − 8 a 8 z 2 + 4 a 6 z 2 + 28 a 4 z 2 − 14 a 2 z 2 − 3 a 8 + 8 a 4 − 4 a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}-a^{8}z^{8}+7a^{6}z^{8}+8a^{4}z^{8}-a^{2}z^{8}-6a^{8}z^{6}+16a^{6}z^{6}+24a^{4}z^{6}-7a^{2}z^{6}-11a^{8}z^{4}+14a^{6}z^{4}+36a^{4}z^{4}-16a^{2}z^{4}-8a^{8}z^{2}+4a^{6}z^{2}+28a^{4}z^{2}-14a^{2}z^{2}-3a^{8}+8a^{4}-4a^{2}}