Solve the equation $$x^2 - 4 = 0$$ . The solutions are $$x =...

Question Analysis
This problem evaluates the student's understanding of solving quadratic equations by moving terms and then applying the square root method.

Key Concept Explanation
To use the square root method, first move all terms to one side of the equation to isolate .

Step-by-step Solution
1. Move the constant term:
2. Apply the square root property: