Multiple choice

Solve the following equation ${x}^{2}-4=0$

  1. $ \left\{ -2,2 \right\} $
  2. $ \left\{ -2,-2 \right\} $
  3. $ \left\{ 2,2 \right\} $

  4. None of these
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A Correct answer
Explanation

x^2 - 4 = 0 implies x^2 = 4. Taking the square root of both sides gives x = 2 or x = -2.

AI explanation

To solve the equation x^2 - 4 = 0, first isolate x^2 by adding 4 to both sides to get x^2 = 4. Taking the square root of both sides gives x = 2 or x = -2. Therefore, the solution set is {-2, 2}.

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