Q. Which of the following represents the solution to the inequality: x^2 - 9 > 0?
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A.
(-3, 3)
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B.
(-∞, -3) ∪ (3, ∞)
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C.
[-3, 3]
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D.
(-3, 3]
Solution
Step 1: Factor the inequality: (x - 3)(x + 3) > 0. Step 2: The solution is outside the roots: (-∞, -3) ∪ (3, ∞).
Correct Answer:
B
— (-∞, -3) ∪ (3, ∞)
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