Question

Simplify: (4+under root 3)(4-under root 3)

Answer 1

Hi friend, Here is the required answer:-

(4+√3) (4-√3)

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

(4)^2- (√3)^2

16-3

13.

The answer is 13.

Hope this helps you...

Answer 2

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

=(4)^2-(root 3)^2
=16-3
=13


hope you understand!!