Question

what are the solution(s) of (x^2 - 4 = 0)?

(x = -4) or (x = 4)
(x = -2) or (x = 2)
(x = 2)
(x = 4)

Explanation:

⚡ Using what you learned: factoring and solving quadratic equations

Step 1: Isolate the variable term

$$ x^2 = 4 $$

Step 2: Take the square root of both sides

$$ x = \pm\sqrt{4} $$

$$ x = 2 \quad \text{or} \quad x = -2 $$

Answer:

\( x = -2 \) or \( x = 2 \)