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21 September, 17:39

How do you simplify 8^-2/3?

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Answers (2)
  1. 21 September, 17:48
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    (2^3) (-2/3) = 2^ (3*-2/3) = 2^ (-2) = 1/2^2 = 1/4 = 0.25
  2. 21 September, 18:03
    0
    Because the exponent is negative take the reciprocal - it becomes 1 / (8^2/3). then take the cube root of the denominator and it becomes 1 / ³√8². 8²=64, and the cube root of 64 is 4. it is now 1/4, which is as simplified as it gets.
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