Find the Polynomial form of the denominator

Find the polynomial form of the denominator

Isn't the given denominator already on its polynomial form? If so how can I code it, because what I've came up with is this:

r = [4 0 -2 0 3]

r = 1×5

4 0 -2 0 3

p = poly(r)

p = 1×6

1 -5 -2 24 0 0

But I don't know if that is correct.

Answer 1

[Walter Roberson]

r = [4 0 -2 0 3]

r = 1×5

4 0 -2 0 3

poly2sym(r)

ans =