Y add -7.5200000000000005 div div div x_2 x_2 sub add mul -0.53 x_1 mul -14.5 x_4 mul -0.684 div abs add mul -64.8 x_0 mul 38.400000000000006 x_3 x_1 sub mul 52.900000000000006 x_0 mul -0.972 exp add -0.331 mul 7.65 x_2