Simplify : `sqrt(3+2sqrt(2))`

Explanation

To simplify the expression \( \sqrt{3 + 2\sqrt{2}} \), we can follow these steps:

### Step 1: Recognize the form of the expression
We notice that the expression inside the square root resembles the expansion of a binomial square. The general formula for the square of a binomial is:
\[ (a + b)^2 = a^2 + 2ab + b^2 \]
In our case, we need to express \( 3 + 2\sqrt{2} \) in the form \( (a + b)^2 \).
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