Combining like terms is a mathematical process used to simplify an expression or to add or subtract polynomials. Learn how to recognize like terms and combinethem in this lesson, then check your knowledge with a quiz. High School Algebra I: Help and Review / Math Courses.
they are terms that contain the same variables raised to the same power. Only the numerical coefficients are different. In an expression, only like terms can be combined. We combine like terms to shorten and simplify algebraic expressions, so we can work with them more easily.