x_1, x_2, 
3*x_1^4*x_2+4*x_1^2*x_2^3+4*x_1^4-5*x_2^4+2*x_1^2*x_2-616
-x_1^5-3*x_1^3*x_2^2-4*x_2^5+x_1^4+3*x_1^2*x_2+2*x_2^3-430
