Y add 66.40 add add mul -8.85 x_4 add mul 1.06 x_3 add mul 0.66 mul x_2 add mul -39.80 pow3 add -64.30 mul -0.90 x_2 mul 0.02 inv add 4.99 mul -2.66 div pow3 add 0.10 mul -2.64 x_2 x_1 mul -6.19 x_0 mul -3.82 x_3