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Math Help - Quadratic Equations! Pls help!

  1. #1
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    Quadratic Equations! Pls help!

    I need to find a number such that the sum of the number and its reciprocal is 20. Anyone, pls?
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  2. #2
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    need to refine your question a bit more..

     1/x +x will always =1
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  3. #3
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    Quote Originally Posted by Zara View Post
    I need to find a number such that the sum of the number and its reciprocal is 20. Anyone, pls?
    x + \frac{1}{x} = 20

    x^2 + 1 = 20x

    x^2 - 20x + 1 = 0

    You can now use the quadratic formula to calculate the values for x
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  4. #4
    Bar0n janvdl's Avatar
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    Quote Originally Posted by skystar View Post
    need to refine your question a bit more..

     1/x +x will always =1
    Wouldn't that apply to multiplication?
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    Talking Thank you!

    Hey Thanks a million
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  6. #6
    Bar0n janvdl's Avatar
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    Quote Originally Posted by Zara View Post
    Hey Thanks a million
    You are welcome
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