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Math Help - Quadratic Equations

  1. #1
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    Quadratic Equations

    Express your answer in the form a + bi

    52) sqrt((4+3i)(3i-4))
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  2. #2
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    Did you try multiplying it out?
    (4+3i)(3i-4) = 12i -12i - 9 -16 = -25.
    sqrt(-25) = 5i.
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  3. #3
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    That is what I concluded with, I just wasn't sure how to handle the sqrt. Thanks.
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