Question

$(2 - \sqrt{3} )(2 + \sqrt{3} )$
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Answer 1

Answer:

$= > (2 - \sqrt{3} )(2 + \sqrt{3} ) \\ = > (2) {}^{2} - ( \sqrt{3} ) {}^{2} \\ = > 4 - 3 \\ = > 1$

Answer 2

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