Y add -1.99 sub mul 91.9 x_3 sub mul -13.600000000000001 x_3 mul -0.666 mul sub mul 1.72 x_1 sub add mul 7.44 x_1 mul 7.55 pow2 add -3.86 mul 66.7 x_0 add mul 0.539 pow3 add -0.641 mul -94.10000000000001 x_3 mul -0.639 x_0 x_2