Determine whether the given expression is a polynomial. If it is a polynomial, indicate its degree and classify by the number of terms (monomial, binomial, trinomial, or none of these).

22m³n⁵ + 5m⁶n⁸ + 13n⁷ + 5n⁴

Expand the expression:

(11a + 4b)²

The variable "p" in the following expression belongs to the set of positive real numbers. Determine the product:

8p(p^13/5 - 3p^2/5)