x_1, x_10, x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9, 
2*x_4+3*x_1
4*x_1^2*x_8^2-x_1*x_2+x_10*x_3
4*x_1*x_10*x_5+3*x_1*x_2+x_10*x_3
2*x_1*x_10*x_6-3*x_1*x_2+3*x_10*x_3
4*x_1*x_10*x_7+3*x_1*x_2-3*x_10*x_3
-2*x_1*x_2*x_3*x_8+x_10*x_3^2*x_8+x_1^2*x_8+x_1^2*x_9
