Example 1: Multiplying Two Monomials with a Single Variable, Algebra I

Tiles are not just for algebra—see how they can help with multiplication too. Young mathematicians learn to use algebra tiles to model polynomial multiplication. A follow-up worksheet provides practice with the skill.

Can you multiply a monomial by a polynomial? Yes, you can, if you use the distributive property. Sal describes how to distribute the monomial term over the entire polynomial expression. He does an excellent job explaining this concept.

Two methods are better than one. An informative video begins with the narrator setting up and using an area model to multiply binomials. It then goes on to show how to multiply the same binomials using repeated distribution. Viewers make...

Looking at area with a hole. Using algebraic expressions as dimensions, learners see how to calculate the area of a rectangle that contains a square hole. The instructional video shows how to create a single expression for the area of...

How difficult is it to calculate the area of a U-shaped figure? Scholars use a helpful video to see how to determine an algebraic expression for the area of an U-shaped composite figure. The method it shows involves decomposing the...

Sal adds a few more steps to these problems as he solves algebraic equations with two steps, though he states that "there's more than one way to do it." Those who become confused by increasingly complicated algebra problems on a test...

Sal demonstrates what not to do when simplifying a squared binomial. Next, he clarifies why they can't square each term individually and then add them. He uses his incorrect example as a starting point to demonstrate how to simplify a...

Apply the distributive property to multiply a monomial times a polynomial to get the area of a rectangle. Then use this information to solve a word problem.

Use the associative property of multiplication to regroup the like terms in this polynomial multiplication expression. Then multiply the terms and make sure it is in simplest form.

Want to learn how to multiply to the power of a monomial? Here's a short explanation of just how to do that.