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Posted by on Wednesday, October 19, 2011 at 7:06am.

3x^2-12x+11=0

Solve for x.

  • Super Easy Math Question - , Wednesday, October 19, 2011 at 8:31am

    Ummmmmmmm. How is that easy??????????

  • Super Easy Math Question - , Wednesday, October 19, 2011 at 12:08pm

    It's only easy if you know the quadratic formula:

    x = [12 ± √(144-132)]/6
    = (12 ± √12)/6
    = 2 ± √3/3
    = 1.423 or 2.577

  • Super Easy Math Question - , Wednesday, October 19, 2011 at 1:16pm

    Answer in the book is 6±√3/3

    I was able to get to (12 ± √12)/6 but I couldn't figure out how you got the rest.

  • Super Easy Math Question - , Sunday, February 12, 2012 at 12:34pm

    4x+y=12
    6x+8y=8

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