Question

(√5+√2)2
$( \sqrt{5 + \sqrt{2)2} }$
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Answer 1

(√5+√2)^2

√5^2+√2^2+2×√5×√2(by using (a+b)^2=a^2+b^2+2ab)

5+2+2√10

7+2√10

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