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Algebra 2 [radicals ]

  1. Mar 7, 2006 #1
    8^2/3 (9^1/2) <---- times (multiply)

    evaluate.
    THANKSS
     
  2. jcsd
  3. Mar 7, 2006 #2

    Integral

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    So what do you know about multiplying numbers with exponents?
     
  4. Mar 8, 2006 #3

    VietDao29

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    One thing youshould know is that:
    [tex]a ^ {\frac{m}{n}} = \sqrt[n] {a ^ m}[/tex]
    For example:
    [tex]25 ^ {\frac{1}{2}} = \sqrt{25} = 5[/tex]
    [tex]5 ^ {\frac{3}{2}} = \sqrt{5 ^ 3} = \sqrt{125}[/tex].
    Now what's:
    [tex]8 ^ {\frac{2}{3}} \quad \mbox{and} \quad 9 ^ {\frac{1}{2}}[/tex]?
    Can you go from here? :)
     
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