A binominal is a polynominal with two terms, the sum of two monominals. It is common practice to bound binominals by brackets or parenthesis when operated upon.
- The binomial can be factored as a product of two other binomials, and .
- The binomial can be factored as the product of two complex numbers, and .
- A binomial to the nth power can be expanded using the binomial theorem or Pascal's triangle.