Prove the quadratic formula with complex analysis

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Uploaded by on Nov 2, 2010

Prove the quadratic formula with complex analysis

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Education

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Standard YouTube License

  • likes, 2 dislikes

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Uploader Comments (fsgm1)

  • Apparently, one can do this proof in about 5 lines via completing the square. LOL

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  • @Andy0n7 Actualy math tries to prove things as easily as posible.

  • @fsgm1 maths are economy, you are NOT looking for the best way to do it...

  • Oh wow I just noticed this isn't your video.

  • @fsgm1 I keep trying to comment to show the proof but it keeps showing as an error. :(

    I'll make a video response and show it that way. :)

  • @Educationscience pull out an i from from the sqrt, then remember to multiply by i when adding this imaginary part to the real part. the negative gets lost in the 'plus or minus' . This video is by me-- this guy is trying to act smart by posting my video. :-)

  • at 7:16 how did you go from 4AC - B^2 to B^2 - 4AC you swapped the negative

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