a 4 z 12 − a 6 z 10 + 10 a 4 z 10 − a 2 z 10 − 8 a 6 z 8 + 41 a 4 z 8 − 8 a 2 z 8 − 25 a 6 z 6 + 88 a 4 z 6 − 25 a 2 z 6 − 38 a 6 z 4 + 103 a 4 z 4 − 38 a 2 z 4 − 27 a 6 z 2 + 61 a 4 z 2 − 26 a 2 z 2 − 7 a 6 + 13 a 4 − 5 a 2 {\displaystyle a^{4}z^{12}-a^{6}z^{10}+10a^{4}z^{10}-a^{2}z^{10}-8a^{6}z^{8}+41a^{4}z^{8}-8a^{2}z^{8}-25a^{6}z^{6}+88a^{4}z^{6}-25a^{2}z^{6}-38a^{6}z^{4}+103a^{4}z^{4}-38a^{2}z^{4}-27a^{6}z^{2}+61a^{4}z^{2}-26a^{2}z^{2}-7a^{6}+13a^{4}-5a^{2}}
