Question

How to find (2+root 2)^2 is irrational numberor rational number?

Answer 1

Answer:

(2+√2)² = (4+√4) = 5√4

Step-by-step explanation:

their is 5 after adding 4 with √4 because if their is no value with root then teir is 1 with root like here it is 1√4.

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