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Math Help - How to solve for x? Exponent rules?

  1. #1
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    How to solve for x? Exponent rules?

    x-1/4 = 2

    Any suggestions/hints? Please and thank you!
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  2. #2
    Senior Member MacstersUndead's Avatar
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    Re: How to solve for x? Exponent rules?

    Note that (xa)b = xab and that -1/4 * -4 = 1.

    Can you finish?
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  3. #3
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    Re: How to solve for x? Exponent rules?

    I got it - x = (1/16)! Thank you so much!
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  4. #4
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    Re: How to solve for x? Exponent rules?

    Quote Originally Posted by misiaizeska View Post
    x-1/4 = 2
    Any suggestions/hints? Please and thank you!
    Another way is: 1 / x^(1/4) = 2 : x^(1/4) = 1/2
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  5. #5
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    Re: How to solve for x? Exponent rules?

    X^-1/4 =2
    -1/4 log base 2 (x) =log base2 (2) =1
    log base 2 (X) =-4
    X=1/16
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