-Variables in the exponents of the terms. -Variables in the denominator. - Negative exponents. -Fractionals exponents. -The variables cant be as radicals.
Therefore:
a) It is a polynomial (The variable is under a radical) b) It is not a polynomial. c) It is a polynomial. d) It is not a polynomial. (It has a variable in the denominator). e) It is a polynomial. f) It is not a polynomial. (It has a variable in the denominator).
