Y add 55.70 div mul sub mul 2.93 x_0 add mul 0.16 x_2 mul 0.57 pow2 add 0.81 mul 3.08 x_3 pow3 add -65.80 mul -34.40 x_5 sub add mul 69.80 x_1 mul -54.10 exp add 70.60 mul -12.10 x_7 add mul -76.60 x_4 mul -32.80 x_6