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16 January, 12:26

Complete the explanation of the error.

If x2=16, then x=4

The value of x could also be ...

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Answers (2)
  1. 16 January, 15:17
    0
    x^2 = 16 has two solutions. They are 4 and - 4. So the value of x could also be - 4.
  2. 16 January, 16:12
    0
    8 or - 4

    Step-by-step explanation:

    The error is they believed x2 meant x^2 OR they forgot that x could also equal to - 4.
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