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Subject:  Precalculus

Solve 3ˣ = 27

An exponential equation that resolves to a whole-number exponent.

Answer x = 3

Solution

  1. Equation 1·3^x = 27
  2. Isolate the power 3^x = c / a = 27
  3. Take logarithms x = ln(27) / ln(3)
  4. Solve x = 3

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