Y add 6.44 div x_0 add mul -66.4 x_0 add sub mul 0.743 inv add -4.22 mul 30.900000000000002 x_4 mul -32.7 div x_1 sub mul -4.1000000000000005 x_1 mul -0.448 x_2 mul 62.900000000000006 pow3 add mul -0.996 x_1 mul 79.4 x_3