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Nali

  • 3 years ago

how do you solve 25^(-3/4) without a calculator?

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  1. Nali
    • 3 years ago
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    does it have to do with square root?

  2. mboorstin
    • 3 years ago
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    You need to cube it, find that thing's fourth root, and then divide 1 by it.

  3. saifoo.khan
    • 3 years ago
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    |dw:1345836408338:dw|

  4. Nali
    • 3 years ago
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    ok i get u @saifoo.khan

  5. mboorstin
    • 3 years ago
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    \(\displaystyle\left(5^2\right)^{\left(-\tfrac{3}{4}\right)}=5^{-\tfrac{3}{2}}=\frac{1}{5^\tfrac{3}{2}}=\frac{1}{\sqrt{125}}=\frac{125}{\sqrt{125}}\).

  6. sasogeek
    • 3 years ago
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    \(\huge x^4 = \frac{1}{25^3}\) solve for x :)

  7. saifoo.khan
    • 3 years ago
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    |dw:1345836856577:dw|

  8. saifoo.khan
    • 3 years ago
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    |dw:1345836902782:dw|

  9. Nali
    • 3 years ago
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    ok thanku

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