Is it a monomial, binomial, trinomial, or polynomial

The video tutorial explains the basic concepts of polynomials, including monomials, binomials, trinomials, and polynomials. It discusses how to identify different types of polynomials based on the number of terms and emphasizes the importance of combining like terms to simplify expressions. The tutorial also clarifies that while trinomials are a type of polynomial, all polynomials must have at least two terms. The video aims to help students understand these concepts and apply them in mathematical problems.

Explain the process of combining like terms in a polynomial.

Can a trinomial also be considered a polynomial? Justify your answer.