Question

whether(√5+2)²is a rational or irrational number.​

Answer 1

Answer:

IT IS IRRATIONAL NUMBER FRIEND!!

Answer 2

HEY BUDDY!

Step-by-step explanation:

${ \sqrt{5} + 2 }^{2}$

$= { \sqrt{5} }^{2} + {2}^{2} + 2 \times 2 \times \sqrt{5}$

(By using an algebraic identity (a+b)^2)

$= 5 + 4 + 4 \sqrt{5}$

$9 + 4 \sqrt{5}$

As we know, it is a irrational no.

Hence, (√5+2)² is an irrational no.