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30 January, 21:15

If x to the 2nd power = 20 what is the value of x

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Answers (2)
  1. 30 January, 23:09
    0
    X = 4.47213595 Is the answer to the question just round to the nearest 10th
  2. 30 January, 23:25
    0
    4.47 and - 4.47 (to nearest hundredth)

    Step-by-step explanation:

    x^2 = 20

    x = + / - sqrt 20

    = + / - sqrt 4 * 5

    = + / - 2 sqrt5

    = + / - 4.47 to nearest hundredth
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