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Let p, q ∈ R. If 2 – 3 is a root of the quadratic equation, x 2 + px + q = 0, then :

1. p 2 – 4q + 12 = 0
2. q 2 – 4p – 16 = 0
3. q 2 + 4p + 14 = 0
4. p 2 – 4q – 12 = 0

Correct answer: p 2 – 4q – 12 = 0

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