Quadratic Formula (proof)

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Uploaded by on Jun 17, 2008

Deriving the quadratic formula by completing the square.

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LICENSE: Creative Commons (Attribution-Noncommercial-No Derivative Works).

For more information about this license, please read: http://creativecommons.org/licenses/by-nc-nd/3.0/.

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  • get on khans level

  • I found myself yelling -4AC!!! extremely loud when i noticed where you were going with it xD

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  • MathMagician....!!!!!

  • You should go and try to solve one of those all time unsolved mathematical problems!

  • ty

  • I would never have been able to notice that they both were actually similar to each other :o My mind....my mind.

  • @colin28mac no homo right?

  • @colin28mac no homo right?

  • I love hot girls.

  • I enjoyed solving this along with you

  • THANKS!!!! this has helped me soooo much!!!! :))

  • life saving video

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