At about the 1:06 mark, the teacher says multiply exponents; he should have said multiply x's or multiply variables.
In this lesson, we learn how to multiply a monomial by a trinomial. The key is to use the distributive property and make sure to multiply the monomial to every term inside the parentheses of the trinomial. We also learn how to combine like terms and how to use the product property when multiplying bases with exponents. By following these steps, we obtain a finished product that is the result of the multiplication of a monomial and a trinomial.
Multiply a monomial by a trinomial
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.