Y add 7.6000000000000005 mul div pow3 add 0.649 mul -0.876 x_7 add mul 8.42 x_0 sub mul 74.4 x_3 add add mul -5.8500000000000005 x_6 add sub mul 4.26 x_2 mul -10.4 div div exp add 0.481 mul -0.16 x_4 sub mul -8.4 x_5 mul -0.216 x_8 x_7 mul 0.5 inv add 27.5 mul -65.8 x_7 mul 0.74 x_4 x_1