Polynomial factorization

This course is a part of Algebra II, a 23-course Topic series from Khan Academy.

In Algebra 1, students rewrote (factored) quadratic expressions as the product of two linear factors. This helped them learn about the behavior of quadratic functions. In Algebra 2, we extend this idea to rewrite polynomials in degrees higher than 2 as products of linear factors. This will help us investigate polynomial functions. It also allows us to prove polynomial identities, which are mathematical statements that describe numerical relationships.

This course contains 7 segments:

Factoring monomials

Greatest common factor

Taking common factors

Factoring higher degree polynomials

Factoring using structure

Polynomial identities

Practice proving polynomial identities, using all the factorization and expansion methods you know.

Geometric series

Whether you are computing mortgage payments or calculating how many users your website will have after a few years, geometric series show up in life far more than you imagine. This tutorial will review all the important concepts and more!