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Math Help - Question on how to write in a+bi form.

  1. #1
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    Question on how to write in a+bi form.

    How could this be written in a+bi form?
    (x^2+2)
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  2. #2
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    In other words I'm asking, how do you write radical(-2) in a+bi form?
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  3. #3
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by badandy328 View Post
    In other words I'm asking, how do you write radical(-2) in a+bi form?
    it would just be \sqrt {2}~i

    so, (x^2 + 2) = (x + \sqrt{2}~i)(x - \sqrt{2}~i)

    that's the closest i can see getting it into a + ib form
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