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farmergirl411

  • 2 years ago

Solve for x (x-2)^-4=625

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  1. cluo
    • 2 years ago
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    Do you know of x^-2 = 1/(x^2)?

  2. farmergirl411
    • 2 years ago
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    no I think the answer is x=7 is that correct

  3. geerky42
    • 2 years ago
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    \((x-2)^4 =\dfrac{1}{625}\) \(\sqrt[4]{(x-2)^4} = \sqrt[4]{\dfrac{1}{625}}\) \(|x-2| = \dfrac{1}{\sqrt[4]{625}} = \dfrac{1}{5}\) \(|x-2| = \dfrac{1}{5}\)

  4. geerky42
    • 2 years ago
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    There are two answers.

  5. geerky42
    • 2 years ago
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    x= 7 is not correct.

  6. farmergirl411
    • 2 years ago
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    Ok I have math processong errors when you gave me thAt first reply and how do you get two solutions

  7. geerky42
    • 2 years ago
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    Look at last step. There is absolute value.

  8. geerky42
    • 2 years ago
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    Do you know how to get rid of absolute value?

  9. farmergirl411
    • 2 years ago
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    I can't see your last step because it all says math processing error

  10. geerky42
    • 2 years ago
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  11. farmergirl411
    • 2 years ago
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    So then does x=.5 and x=-2 is that what you are meaning what the answers are

  12. farmergirl411
    • 2 years ago
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    Is that what you are meaing

  13. farmergirl411
    • 2 years ago
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    Can someone tell me if x=-2 and x=.2 are the answers to this problem

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