Question

(√5-√2)(√5+√2) simplify
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Answer 1

Answer:

1. $(\sqrt{5} - \sqrt{2} )( \sqrt{5} + \sqrt{2} ) \\ \sqrt{5} \times \sqrt{5} + \sqrt{5} \sqrt{2} - \sqrt{2} \sqrt{5} - \sqrt{2} \sqrt{2} \\ \\ 5 + \sqrt{10} - \sqrt{10} - 2 \\ \sqrt{10} \: and \: - \sqrt{10} \: will \: get \: cancel \\ \\ 5 - 2 = 3$

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