Completing the Square 3
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Part of video series
Meets NCTM Standards:
Lesson Description:
Part 3 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 use completing the square to solve x^2 - 4 = 7x?
- How do you use completing the square to solve x^2 + x + 5 = 0?
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Staff Review
This lesson goes through two more example problems. The quadratic equations are solved by completing the square, factoring, using the square root property, and solving. Note that you will get two solutions when solving most of these problems. All steps involved in this sometimes complicated process are explained. The problems in this lesson again have a leading coefficient of 1, but problems in the next lessons in this series have leading coefficients other than 1.
