Y add 9.97 div add mul 66.5 x_4 sub mul -83.9 x_1 mul -40.0 x_0 div sub mul -0.713 x_3 mul 5.2700000000000005 div x_4 x_2 add mul 7.930000000000001 x_4 mul -40.300000000000004 sqrt add 68.5 mul 0.048 div x_2 x_5