Y add 89.60000000000001 sub mul -52.300000000000004 x_1 sub mul 0.217 mul add mul 50.400000000000006 pow2 add 31.200000000000003 mul 0.165 x_5 mul -9.78 mul sub mul -20.200000000000003 x_6 sub mul -0.523 x_8 mul -49.0 x_4 x_2 div x_3 x_0 mul 7.0200000000000005 x_7