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13 March, 15:05

What number to the 4th power makes 256?

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Answers (2)
  1. 13 March, 15:21
    0
    We could work this out using log, but an easier way would be to find the square root of the square root.

    Because of the way indices work, ((x) ²) ² = x⁴

    so;

    = √√256

    = √16

    = 4
  2. 13 March, 17:58
    0
    4x4x4x4=256 or √256=16 and √16=4 your answer is (+-) 4
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