In this video lesson, learn about polynomials.

Polynomials
Polynomials are expressions with more than one term.
Monomials that are added or subtracted by each other form polynomials.

$4x$ is a monomial.
$12ab$ is a monomial.
$4x+12ab$ is a polynomial.
$3x^2y+3x^2-5x+7$ is a polynomial.