Question

Value of (root 5+root 3) (roo5 - root 3) is

Answer 1

Answer:

I got 2 as the answer.

Step-by-step explanation:

here, we can use the identity (a+b)(a-b)= a square - b square.

= (root5)square - (root3)square.

root and square can get cancelled and you are left with 5-3 = 2. :)