Question

Answer this

The value of
$( \sqrt{5} + \sqrt{2} )( \sqrt{5} - \sqrt{2} )$
​

Answer 1

Answer:

(√5+√2)(√5-√2)

= [(√5)² - (√2)²]

= (5 - 2)

= 3.

Answer 2

Answer:

(a+b)(a-b)=a²-b²

(√5)^2-(√2)^2

5-2

3