Question

Please solve this. A proper step-by-step answer will be marked as Brainliest.
$\frac{ {9}^{n} \times {3}^{2} \times { ({3}^{ \frac{ - n}{2} }) }^{2} - {27}^{n} }{ {3}^{3m} \times {2}^{3} } = \frac{1}{27}$
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Answer 1

Step-by-step explanation:

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