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Discriminant in Quadratic Formula

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Uploaded by on Oct 9, 2010

Defines the discriminant and how to use it to find what types of solutions a quadratic equation has. Youtube videos by Julie Harland are organized at http://yourmathgal.com

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  • 3:10 Negative i?

    

  • @B00Red1: Negative i refers to complex numbers. i is the imaginary number which is the square root of -1. It's explained in my videos on complex numbers, which you need to know about to use the quadratic formula, which has the discriminant. You can go to my website to see all my videos organized by topic. Go to algebra then complex numbers. Have fun!

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  • You are my math gal!! =D

  • THANK YOU SOOOO MUCH!! A lot of Help

  • Thank you so much this really helped me a lot! :)

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