x_1, x_2, 
640000*x_1*x_2*(9*x_1^6+43*x_1^4*x_2^2+59*x_1^2*x_2^4+25*x_2^6-35308*x_1^4-6744*x_1^2*x_2^2+182164*x_2^4+14732032*x_1^2-234483712*x_2^2+122418102272)
810000*x_1^8+6120000*x_1^6*x_2^2+16060000*x_1^4*x_2^4+17000000*x_1^2*x_2^6+6250000*x_2^8-6636960000*x_1^6-31209440000*x_1^4*x_2^2-32288480000*x_1^2*x_2^4+8668000000*x_2^6+20024565760000*x_1^4+44763381760000*x_1^2*x_2^2-15135703040000*x_2^4-26368918159360000*x_1^2+12804874567680000*x_2^2+12803984704143400000
