Question

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

Answer:

➡ (√5 - √2) (√5 + √2)

➡ (√5)^2 - (√2) ^2

➡ 5 - 2

➡ 3

Hope it helps...

Answer 2

$\huge\red{\ddot\smile}$