Completing the Square 2
5699 views
|
1
rating
Part of video series
Meets NCTM Standards:
Lesson Summary:
In Completing the Square 2, the lesson begins by solving a quadratic equation using the Completing the Square technique, in which the x-squared and x-terms are written on one side of the equation with a blank, and the constant on the other side with another blank. Then, it demonstrates how to complete the square and use the square root property to solve for the roots. The lesson also highlights how Completing the Square can be used when factoring is not possible and concludes with applying the technique to complex numbers.
Lesson Description:
Part 2 of Showing how to the complete the square to solve quadratic equations.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you use completing the square to solve quadratic equations?
- How do you solve x^2 + 6x = -8 by completing the square?
- How do you solve and check x^2 - 6x = 1 by completing the square?
- How do you solve x^2 - 2x + 2 = 0 by completing the square?
-
Staff Review
This lesson shows how to solve quadratic equations by completing the square. This is often a frustrating topic, and it is explained very well and simply in this video. This is a must-watch if you are learning completing the square for the first time. The problems solved in this video have a leading coefficient of 1, which makes things slightly easier.
