Powers of Three
Express 3^{3} + 3^{3} + 3^{3} + 3^{3} + 3^{3} + 3^{3} + 3^{3} + 3^{3} + 3^{3} as a power of 3. If 3^{3} is added n times, express the result as a power of 3, in terms of n.
(Source: Adapted from Mathematics Teaching in the Middle School, Sep 1995)
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