Y add 0.487 mul div x_4 sub mul -30.1 pow3 add 88.10000000000001 mul -0.35000000000000003 mul abs add -0.23700000000000002 mul 3.2600000000000002 x_1 div x_3 x_0 mul -83.0 abs add 21.1 mul -7.75 x_2 mul x_4 pow2 add 0.272 mul -0.84 x_3