# Simplify an Expression With Four Terms by Factoring

Taught by mrbrianmclogan
• Currently 4.0/5 Stars.
6280 views | 1 rating
Part of video series
Errors in this video:

At about the 0:59 mark, the teacher puts parentheses on the board, but he changes the meaning of the expression by putting them where he does; the expression should look like: (x^2y-ax)-(xy-a) OR (x^2y-ax)+(-xy+a).

Lesson Summary:

In this lesson, you'll learn how to simplify an expression with four terms by factoring. First, you'll identify what each term shares in common. If none of the terms share a factor, you can try factoring by grouping. You'll then take the first two terms and the last two terms and look for a factor that can be factored out of both of them. Once you've factored out the common factor, you'll be left with two terms that are exactly the same. You can then factor out those two terms to simplify the expression.

Lesson Description:

Simplify an expression with four terms by factoring

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.

• 