Question

simplify (2 + root 5 )² along with the solving part ​

Answer 1

Answer:

9 + 4√5

Step-by-step explanation:

(2 + √5)²

a² + b² + 2ab

2² + √5² + 2 x 2 x √5

4 + 5 + 4√5

9+4√5

Answer 2

Step-by-step explanation:

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