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Solve x^2 = 16

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Answer
x=4,x=−4\boxed{x = 4, x = -4}

Checking the result, both 42=164^2 = 16 and (−4)2=16(-4)^2 = 16 are true.

Problem: Solve x2=16x^2 = 16.

Steps

  1. Apply the square root property
    x=±16x = \pm\sqrt{16}
  2. Simplify the radical
    x=±4x = \pm 4

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