Y add 7.2700000000000005 div x_3 add sub mul 73.2 div add mul 0.775 x_5 mul 2.47 x_4 div sub mul 7.03 x_2 add sub mul 0.588 x_1 mul 0.79 inv add -1.04 mul 15.700000000000001 x_7 mul -0.113 exp add -83.9 mul 0.482 x_0 x_8 mul -0.489 x_6 mul -0.317 x_1