Y add 4.0600000000000005 div x_2 div div mul sub sub mul 0.07100000000000001 mul pow2 add -1.53 mul 66.60000000000001 x_6 sub mul 0.622 div x_3 inv add -7.03 mul -0.28400000000000003 x_5 mul 98.60000000000001 x_2 mul 0.122 mul x_7 x_1 mul -0.099 x_0 x_8 x_8 x_4