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Math Help - Simplification

  1. #1
    Junior Member
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    Simplification

    (4-x^2)^(1/2) + (1/2(4-x^2)^(-1/2)) (-2x)
    Stuck on my calculus trying to simplify this algebra *sigh*...
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  2. #2
    Super Member 11rdc11's Avatar
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    Is this what it looks like?

    \sqrt{4-x^2} -\frac{2x}{2\sqrt{4-x^2}}
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  3. #3
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    Quote Originally Posted by 11rdc11 View Post
    Is this what it looks like?

    \sqrt{4-x^2} -\frac{2x}{2\sqrt{4-x^2}}
    yes
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  4. #4
    Super Member 11rdc11's Avatar
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    \sqrt{4-x^2} -\frac{2x}{2\sqrt{4-x^2}}

    1st cancel out the 2

    \sqrt{4-x^2} -\frac{x}{\sqrt{4-x^2}}

    Next find common denominator

    \frac{-x^2 -x+4}{\sqrt{4-x^2}}

    Next rationlize
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