Correct Answer: Option D

Explanation

(x\(^2\) + x - 12) ≥ 0
(x + 4)(x - 3) ≥ 0
Either x + 4 ≥ 0 implies x ≥ - 4
Or x - 3 ≥ 0 implies x ≥ 3
∴ x ≥ 3 or x \(\leq\) -4

There is an explanation video available below.

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