Khan Academy: Algebra: Adding Polynomials

Adding two polynomials begins with simplifying when possible. Sal demonstrates the process he uses to combine like terms and explains why the process works. This video would be great for those who need a quick refresher.

While explaining how to add polynomial expressions with multiple variables, Sal uses academic vocabulary and a clear thinking process. This video is relatively short and would be appropriate for students working on homework or prepping...

Video demonstrates how to identify the greatest common factor of a polynomial and use it to factor a given binomial. [5:28]

Video shows how to use polynomial multiplication to find the volume of a cylinder of given dimensions. The problem requires multiplying a binomial and a trinomial. [4:19]

Polynomial identities are equations that are true for all possible values of the variable. This introduction video gives more examples of identities and discusses how we prove an equation is an identity. [4:56]

Video demonstrates how to use the distributive property to multiply a binomial and a trinomial. Also shows how to multiply using a vertical format. Practice problems available. [5:46]

Video demonstrates how to use the FOIL method to multiply two binomials and shows that it is the same as just applying the distributive property. Practice problems available. [4:32]

Determine whether the stated polynomial identities are in fact true and whether the proofs given of such identities are valid. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or...

Explains what like terms are and demonstrates how to simplify a polynomial. [3:37]

Video demonstrates how to divide a trinomial of degree 3 by a trinomial of degree 2. Problem involves a remainder and multiplication is used to check the answer. Develops an understanding of polynomial division prior to an introduction...