Question

simply (√5−√2)(√5+√2)=​

Answer 1

(√5 - √2)(√5 + √2)

= (√5)² - (√2)²

= 5 - 2

= 3.

Answer 2

Answer:

use( X^2-Y^2). =(X+Y)(X-Y)

(√5)^2-(√2)^2

5-2

=3

hope it's helpful.