a 6 z 10 − a 8 z 8 + 8 a 6 z 8 − a 4 z 8 − 6 a 8 z 6 + 24 a 6 z 6 − 6 a 4 z 6 − 12 a 8 z 4 + 35 a 6 z 4 − 11 a 4 z 4 − 11 a 8 z 2 + 26 a 6 z 2 − 7 a 4 z 2 − 5 a 8 + 8 a 6 − 2 a 4 {\displaystyle a^{6}z^{10}-a^{8}z^{8}+8a^{6}z^{8}-a^{4}z^{8}-6a^{8}z^{6}+24a^{6}z^{6}-6a^{4}z^{6}-12a^{8}z^{4}+35a^{6}z^{4}-11a^{4}z^{4}-11a^{8}z^{2}+26a^{6}z^{2}-7a^{4}z^{2}-5a^{8}+8a^{6}-2a^{4}}
