Question

2+√5 multiple by 2-√5
I am requesting you all please explain nicely and do the sum please ​

Answer 1

Step-by-step explanation:

$2 + \sqrt{5} \times 2 - \sqrt{5}$

$4 - 5$

$- 1$

Hope it helps u

Answer 2

Answer:

-1

Step-by-step explanation:

2(2-√5)+√5(2-√5)

4 - 2√5 + 2√5 -5

now, cancel -2√5+2√5

now, 4 - 5 ,= -1

Here is your answer. plz mark as brilliant