Y add -68.2 div div add mul -18.400000000000002 inv sub mul -0.179 x_2 mul -8.8 x_1 add mul 2.58 mul x_0 x_0 add mul -7.53 pow3 add -65.3 mul -0.967 x_3 mul -93.80000000000001 x_2 pow2 add -44.1 mul -10.8 x_2 x_1