Write the word or phrase that best completes each statement or answers the question. Provide the missing information. -A real number a is called a lower bound of the real zeros of

Write the word or phrase that best completes each statement or answers the question.
Provide the missing information.
-A real number a is called a lower bound of the real zeros of a polynomial f (x) if all real zeros of f
(x) are or equal to a.