In algebra, a polynomial is the sum of two or more monomials.
Examples: (12x2y2 + 3x3y2); (12m + 64); and (3p − 64p3q + 12pq2)
A polynomial with 2 terms is known as a binomial, and it's the sum of two monomials. A polynomial with 3 terms is known as a trinomial, and so on.