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Nancy1233

  • 4 years ago

9^10n-12=1/6561

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  1. lgbasallote
    • 4 years ago
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    Please put the necessary grouping symbols to avoid confusion :)

  2. Nancy1233
    • 4 years ago
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    \[9^{10n-12}=1/6561\]

  3. lgbasallote
    • 4 years ago
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    9^10n - 12 = 6561^-1 3^2(10n-12) = 3^8 2(10n-12) = 8 10n - 12 = 4 10n = 16 n = 16/10 n = 8/5

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