To rewrite the logarithmic equation \( \log_3 (x - 2) = 4 \) in its equivalent exponential form, we use the definition of a logarithm. The expression can be rewritten as:
\[ x - 2 = 3^4 \]
Next, we need to solve for \( x \):
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Calculate \( 3^4 \): \[ 3^4 = 81 \]
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Now substitute this value back into the equation: \[ x - 2 = 81 \]
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Solve for \( x \) by adding 2 to both sides: \[ x = 81 + 2 \] \[ x = 83 \]
Thus, the solution for \( x \) is \( x = 83 \).
To summarize:
- The equivalent exponential form is \( x - 2 = 3^4 \).
- The value of \( x \) is \( 83 \).