Question

simplify (√5 - √2 ) ( √5 + √2)​

Answer 1

Answer:

$\sqrt{5} \times \sqrt{5} + \sqrt{5} \sqrt{2} - \sqrt{2} \sqrt{5} + \sqrt{2} \sqrt{2} = 5 + 2 = 7$

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