Solve the Logarithmic Equation $\log x + \log ( x - 1 ) = \log 30$

question 38

Multiple Choice

Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic
expressions. Give the exact answer.
- $\log x + \log ( x - 1 ) = \log 30$

• A) \(\{ 6 \}\)
• B) \(\{ - 5 \}\)
• C) \(\{ 6 , - 5 \}\)
• D) \(\left\{ \frac { 31 } { 2 } \right\}\)

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