Y add -13.0 mul mul div x_5 pow3 add 0.47700000000000004 mul 3.5100000000000002 x_4 x_2 pow2 sub mul 6.9 pow3 add mul 84.30000000000001 x_1 mul -91.10000000000001 pow3 add -0.9460000000000001 mul 0.42 x_3 mul -2.85 x_0