Answer: The answer is [tex]y^2+5y-2~~~\textup{and}~~~-x-x^3-x^2.[/tex]
Step-by-step explanation: We are all familiar with the concept of polynomials. A polynomial is an algebraic expression involving an unknown variable and its positive integral powers.
Therefore, from this definition of a polynomial, we can conclude any algebraic polynomial consisting of more than one unknown variable will not be considered as a polynomial.
Thus, out of the given options, the following are polynomials.
[tex]y^2+5y-2~~~\textup{and}~~~-x-x^3-x^2.[/tex]
