construct/rlve polynomial global minimum

construct/rlve polynomial global minimum: a task in MathConstructOptimize-Envs-harbor (Harbor dataset). Let f(x) = (67) x^0 + (186) x^1 + (287) x^2 + (40) x^3 + (272) x^4 + (-240) x^5 + (211) x^6 + (-120) x^7 + (47) x^8 + (-10) x^9 + (1) x^10.