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1. $\log_{x} 324 = 4$

Answer: Option B

Explanation:

\log_{x} 324 = 4 \to x^{4} = 324 \to x^{4} = 81 \times 4 \to x^{4} = 3^{4} \times {(\sqrt{2})}^{4} \to x^{4} = {(3 \sqrt{2})}^{4} = x = 3 \sqrt{2}

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