calculus

hey guys, quick question

(-8 +- sqrt -20)/-6


what does this equal

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asked by Karlie
  1. and how

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    posted by Karlie
  2. looks like the solution to a quadratic equation, which turns out to be a complex number
    remember that √-1 = i , so

    (-8 +- sqrt -20)/-6

    = (-8 ± 2√5 i)/-6
    = (4 ± √5 i)/3

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    posted by Reiny

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