Question

simplify (√5 - √2) (√5 + √2)​

Answer 1

Answer:

We use (a+b) (a-b) = a^2-b^2 formula here

(√5 - √2) (√5 + √2)=(√5) ^2-(√2) ^2

=5-2 = 3

Answer 2

Answer:

3

Step-by-step explanation:

(a-b)(a+b) =a^2 -b^2

= (√5)^2 -√(2)^2 = 5-2 =3