söndag 11 december 2011

den du lotta!


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2 kommentarer:

  1. " -0.2x²+12x + 11 = 0
    Use the quadratic formula to solve
    ax²+bx+c=0 where
    a=-0.2
    b=12
    c=11

    x = [-b ± √(b²-4ac)] / (2a)
    = [-(12) ± √((12)² - 4(-0.2)(11))] / 2(-0.2)
    = [-12 ± √(152.8)] / -0.4
    = 30 ± -30.903

    x₊ = 30 + -30.903 ≅ -1 invalid
    x₋ = 30 - -30.903 ≅ 61"

    Booyeah, everyday algebra.

    SvaraRadera