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Thread: Factoring a negative out of a radical

  1. February 1st 2010, 12:44 PM #1
    BadMaterial
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    Factoring a negative out of a radical

    How do you factor the Minus Sign out of the radical
    <br /> 1-\sqrt{1-x}<br />
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  2. February 1st 2010, 12:48 PM #2
    pickslides
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    Quote Originally Posted by BadMaterial View Post
    How do you factor the Minus Sign out of the radical
    <br /> 1-\sqrt{1-x}<br />
    I think you are looking to do this

    1-\sqrt{1-x}

    1-\sqrt{-1(x-1)}

    If you know complex numbers then...

    1-\sqrt{-1}\sqrt{(x-1)}

    1-i\sqrt{(x-1)}
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