Which expression are polynomial can be more than one answer

and 6y²+5x

Step-by-step explanation:

Polynomials are algebraic expressions involving one, or even more than one variables raised to any power summing each other. Generally speaking, in other words an one variable Polynomial is

So a multivariate polynomial expression are and 6y²+ 5x.

Because in the other options:

We have a Radical of an Irrational number times x (2nd option) what does not configure a polynomial.

And a Polynomial Quotient with a variable on the denominator, described by:

Like the last option: