To simplify the expression \( x + \frac{6}{3^2} - (2 \cdot 3) + 5 \), let's focus on the denominator of the fraction \( \frac{6}{3^2} \).
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Calculate \( 3^2 \): \[ 3^2 = 9 \]
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Now, we rewrite the expression: \[ x + \frac{6}{9} - (6) + 5 \]
The simplified denominator of the fraction \( \frac{6}{3^2} \) is \( 9 \).
To summarize, while the overall expression can be simplified, the question specifically asks for the simplified denominator of the fraction, which is:
9
None of the provided responses (8, 26, 56, -2) are correct, given the calculation above. If you meant to refer to a different part of the expression, please clarify, and I will assist you accordingly.