Question

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Answer 1

Answer:

$( \sqrt{5} - \sqrt{2} )( \sqrt{5} + \sqrt{2} ) \\ \sqrt{5} + \sqrt{2} - \sqrt{5} - \sqrt{2} \\ \sqrt{7} + \sqrt{7} \\ \sqrt{14} \\ \sqrt{2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2} \\ \sqrt{ {2}^{2} \times {2}^{2} \times {2}^{2} \times 2 } \\ \sqrt{ {2}^{2} } \times \sqrt{ {2}^{2} } \times \sqrt{ {2}^{2} } \times { \sqrt{2} }^{} \\ 2 \times 2 \times 2 \times \sqrt{2 } \\ 8 \sqrt{2}$

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