Question

what is value of (2+√3) (2-√3)​

Answer 1

Answer:

= (2+√3)(2-√3)

= (2)² - (√3)² ------{as, (a+b)(a-b) = a² - b²}

= 4 - 3

= 1

Step-by-step explanation:

_______:-)

Answer 2

Step-by-step explanation:

(2+√3) (2-√3)

(a²-b²) = (a-b)(a+b)

2² - (√3)²

4 - 3

1