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Thread: exponents equation help!

  1. February 18th 2010, 04:24 PM #1
    needhelpplease1
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    Unhappy exponents equation help!

    4 (5^ {-3x+2}) = 100

    Please help, I have no idea how to solve this. I have some basis of exponent rules, but what do I do? Do I have to factor?
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  2. February 18th 2010, 04:56 PM #2
    skeeter
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    Quote Originally Posted by needhelpplease1 View Post
    4 (5^ {-3x+2}) = 100

    Please help, I have no idea how to solve this. I have some basis of exponent rules, but what do I do? Do I have to factor?
    4 (5^{-3x+2}) = 100

    divide both sides by 4 ...

    5^{-3x+2} = 25

    5^{-3x+2} = 5^2

    finish it.
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