Consider the list of operations below. choose the one that polynomials are not closed under. addition subtraction multiplication division

Polynomials are not closed under division.for example, if we divide the polynomial with the polynomial  , we get    which is not a polynomial expression. there are variables in the denominator, it is not written as just terms, etc. the expression is also undefined at x = 3 because that results in a division by zero. polynomials do not have any undefined values.