Y add -0.927 sub mul -2.14 x_2 mul 1.94 mul sub mul -79.4 log add mul 0.809 abs add 38.7 mul 0.515 x_1 mul 0.8170000000000001 x_0 mul 67.10000000000001 mul x_1 pow2 add -85.30000000000001 mul 0.26 x_0 x_1