Y add -7.74 div div x_0 add mul -6.43 x_3 mul -9.4 mul exp add 0.275 mul 1.31 x_3 sub mul -0.861 pow2 add -50.2 mul 0.106 x_2 mul -40.800000000000004 x_1 abs add 72.10000000000001 mul 14.700000000000001 x_4