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1. $2 - i \sqrt{3}$

A. $x^{2} - 4 x + 7 = 0$
B. $x^{2} - 4 x + 7 = 0$
C. $x^{2} - 4 x + 7 = 0$
D. $x^{2} - 4 x + 7 = 0$

Answer: Option A

Explanation:

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