x_1, x_2, 
-270*x_1^4*x_2^3-314*x_1*x_2^4-689*x_1*x_2^3+1428
36*x_1^7+417*x_1^6*x_2-422*x_1^5*x_2^2-270*x_1^4*x_2^3+1428*x_1^3*x_2^4-1475*x_1^2*x_2^5+510*x_1*x_2^6-200*x_1^6-174*x_1^5*x_2-966*x_1^4*x_2^2+529*x_1^3*x_2^3+269*x_1^2*x_2^4+49*x_1*x_2^5-267*x_2^6+529*x_1^4*x_2+1303*x_1^2*x_2^3-314*x_1*x_2^4+262*x_2^5+36*x_1^4-788*x_1^2*x_2^2-689*x_1*x_2^3+177*x_2^4
