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    I'm kinda stuck on this question.how to simplify it? any help would be greatly appreciated

    I just not sure what the first step should be.
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    (Original post by thuvcasio)
    I'm kinda stuck on this question.how to simplify it? any help would be greatly appreciated

    I just not sure what the first step should be.
    Simplify the fraction inside the brackets first!

    X^2 = sqrt(x)
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    (Original post by thuvcasio)
    I'm kinda stuck on this question.how to simplify it? any help would be greatly appreciated

    I just not sure what the first step should be.
    You can cancel the two's out so you get: \displaystyle \left(\frac{16}{25}\right)^{1/2} and then notice that you can write 16 = 4^2 and 25 = 5^2 to get:

    \displaystyle \left(\frac{4^2}{5^2}\right)^{1/2} but having something to the power half is just square rooting it: so it's just simplifying

    \displaystyle \sqrt{\frac{4^2}{5^2}} and then a simple application of \displaystyle \sqrt{\frac{a}{b}} = \frac{\sqrt{a}}{\sqrt{b}} and \sqrt{c^2} = c (for c>0) yields the require simplification
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    \dfrac{4}{5}
 
 
 
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