Y add -0.6900000000000001 mul div pow3 add mul 8.14 x_6 mul -0.23 x_7 sub mul 0.265 div pow3 add -67.60000000000001 mul 86.9 div x_2 x_3 add mul -5.57 mul div x_1 x_2 x_4 mul -3.61 x_3 mul 5.18 x_0 add mul -0.465 x_5 mul 0.982 div x_8 x_1