CK-12: Andrew Gloag, Anne Gloag, and Melissa Kramer's "Multiplication of Polynomials"

Scroll down to the Practice Set, and solve problems 7-21. This set of problems contains exercises involving multiplying polynomials with any number of terms. Some of the problems involve multiplying three polynomials. In this case, multiply any two of the three polynomials first and then multiply the third polynomial by the simplified result. Once you have completed the practice problems, check your answers against the answer key.