Students will learn how to find the GCD and LCM of polynomials. Some problems should involve univariate polynomials, others multivariate. As an example problem, factor the GCD out of \(4x^4y + 8x^3y.\) Here's a video. For each problem, students will start by factoring out what is common to every term. For the more difficult problems, factoring out will leave students with a monomial times a quadratic. Students will then have to factor the quadratic, if possible.