Question

(2+ underroot5) (2+ underroot5) is​

Answer 1

Answer:

9+4√5

Step-by-step explanation:

HOPE THIS HELPS YOU

Answer 2

Answer:

(2+root5)(2+root5)

(2+root5)²

(a+b)²=(a)² +(b) ² +2ab

(2)²+(root5)² + 2(2×root5)

4+5+4root5

9+4root5

Here is ur answer