Question

Simplify the expression:

(√5 -√2 ) (√5 +√2 )

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Answer 1

Step-by-step explanation:

(√5 -√2 ) (√5 +√2 )

$(\sqrt{5 \: \: } ) {}^{2} -( \sqrt{2} ) {}^{2}$

= 5-2

= 3

Answer 2

3

Using (a+b)(a-b) = $a^2-b^2$

$(\sqrt{5})^2-(\sqrt{2})^2$

5-2

3

Hope it helps u

Have a great day ahead

Annyeong