Y add 5.46 div sub sub mul 9.66 div exp add 75.10000000000001 mul -0.149 x_8 div x_7 x_4 add mul -8.21 pow3 add -16.400000000000002 mul 0.6950000000000001 x_6 mul -0.428 div x_5 add mul 0.875 pow2 add -0.624 mul -0.47900000000000004 x_4 mul 0.128 x_2 mul 0.055 x_1 sub mul -8.6 x_3 mul -0.247 x_0