Y add -6.32 sub mul 0.597 div div sub add mul 87.7 exp add 0.5740000000000001 mul -3.1 x_8 mul 6.62 x_5 mul 1.35 x_2 div add mul -5.4 div x_1 div x_4 x_7 mul -86.5 div x_5 mul div pow2 add -3.5100000000000002 mul 7.65 x_3 x_1 x_6 x_0 x_3 mul 7.75 x_7