Y add -0.778 add mul -0.39 mul mul x_2 x_6 sub mul -53.400000000000006 x_1 sub mul 0.26 mul sub mul -4.18 exp add 0.09 mul -0.808 x_7 mul 0.265 x_3 pow3 add -68.10000000000001 mul 83.10000000000001 x_5 mul 0.362 x_0 mul -21.6 x_4