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Proof of Quadratic Formula

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Examples, solutions, videos, worksheets, games, and activities to help Algebra students learn about how to derive the quadratic formula by completing the square.

The following diagram shows the Proof for the Quadratic Formula. Scroll down the page for more examples and solutions of how to proof or derive the quadratic formula.
Quadratic Formula Proof

Proof of Quadratic Formula
Deriving the quadratic formula by completing the square. Deriving the Quadratic Formula

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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