Question

solve fourth question​

Answer 1

Answer:

(√5 - √2) (√5 + √2)

By using the identity of (a - b)(a + b)= a^2 - b^2

(√5)^2 - (√2)^2

5 - 2

3

Hope it helps

Answer 2

(√5 -√2) (√5+√2)

=(√5)2 - (√2)2

=5 - 2

=3.