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29 January, 07:15

Which of these is NOT equivalent to 2^-3

A.-2^3

B. 2 (1/4) ^2

C. 2^2 x 2^-5

D. (1/2) ^3

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Answers (2)
  1. 29 January, 07:37
    0
    The answer is A. - 2^3
  2. 29 January, 07:37
    0
    A. - 2^3 Because if you do 2^-3 that equals 1/8 but - 2^3 is really - 2*-2*-2 which equals - 8.
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