14 videos in "Completing the Square"
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Completing the Square
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Completing the Square
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Completing the Square 1
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Completing the Square 2
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Completing the Square 3
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Completing the Square 4
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Completing the Square 5
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Completing the Square and Quadratic Formula 1
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Completing the Square and Quadratic Formula 2
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Solving by Completing the Square
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Factoring a Quadratic Equation using a Perfect Square
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Completing the Square
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Completing the Square of Two Functions
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Completing the Square by Factoring out -1
Completing the Square 3
Completing the Square 3
543 views - 00:09:49
Part of video series Completing the Square
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Part 3 of Showing how to the complete the square to solve quadratic equations.
- 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?
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.
