# Completing the Square by Factoring out -1

Taught by mrbrianmclogan
• Currently 4.0/5 Stars.
4783 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, you will learn how to complete the square by factoring out a negative sign. The teacher walks you through the steps needed to get from the quadratic form to the perfect square trinomial form. By using the tip of B over two squared, you can easily find the binomial that is needed to get the trinomial. The key to this lesson is to remember to factor out and multiply the same value to ensure the equation is still equivalent.

Lesson Description:

Completing the square by factoring out a negative one

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.