• I visited the doctor…
  • Damn, I look good…
  • What’s wrong with today’s youth?
  • I am a cat and I can sleep wherever I want
  • Cats as fonts
  • Meanwhile, in Scotland…
  • There it goes…
  • Trains of the world
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  • You know it’s too hot when…
  • Oh dear!

11 August, 2011 in What is this? | 1 Comment

funny-troll-math-problem



Comments
  1. prawns

    3:21 pm

    y = -4 (x-3)^2
    -4x^2 + 24x – 36 = 0
    delta = 576 – 4*(-4)*(-36) = 0 => it’s a parabola with one real root x1 = x2
    x1 = x2 = -24 / (2*(-4)) = 3
    and I finished my school over 15 years ago!