Y add -29.700000000000003 div sub mul -0.28200000000000003 div div x_3 add mul -0.23900000000000002 x_7 mul -0.659 mul pow2 add -1.67 mul 45.800000000000004 div x_4 pow3 add -0.863 mul 0.856 div x_5 x_0 x_6 inv add 0.599 mul -39.0 x_5 mul -72.2 x_1 inv add 7.49 mul -2.52 x_2