construct/rlve polynomial global minimum

construct/rlve polynomial global minimum: a task in MathConstructOptimize-Envs-harbor (Harbor dataset). Let f(x) = (148) x^0 + (-420) x^1 + (505) x^2 + (-328) x^3 + (121) x^4 + (-24) x^5 + (2) x^6 + (2) x^8.

The task

Let f(x) = (148)*x^0 + (-420)*x^1 + (505)*x^2 + (-328)*x^3 + (121)*x^4 + (-24)*x^5 + (2)*x^6 + (2)*x^8.

Part of amphora/MathConstructOptimize-Envs-harbor.