Which of the following options correctly rewrites log4(9m3n)

using the Quotient Rule of Logarithms, the Product Rule of Logarithms, and the Power Rule of Logarithms?

Option #1: log49−3log4m+log4n

Option #2: log49+3log4m−log4n

Option #3: 3log49m−log4n

(1 point)
Option #

1 answer

To rewrite \( \log_4(9m^3n) \) using the rules of logarithms (Product Rule, Quotient Rule, and Power Rule), let's break it down step by step.

  1. Use the Product Rule: The Product Rule states that \( \log_b(xy) = \log_b(x) + \log_b(y) \). Here, we can apply it to the three parts of \( 9m^3n \): \[ \log_4(9m^3n) = \log_4(9) + \log_4(m^3) + \log_4(n) \]

  2. Use the Power Rule: The Power Rule states that \( \log_b(x^k) = k \cdot \log_b(x) \). Here, we can apply it to \( m^3 \): \[ \log_4(m^3) = 3 \log_4(m) \]

Now we can rewrite the expression: \[ \log_4(9m^3n) = \log_4(9) + 3 \log_4(m) + \log_4(n) \]

This rearrangement gives us: \[ \log_4(9) + 3\log_4(m) + \log_4(n) \]

Now we can match this with the options given:

  • Option #1: \( \log_4(9) - 3\log_4(m) + \log_4(n) \) (incorrect sign for the \( \log_4(m) \) term)
  • Option #2: \( \log_4(9) + 3\log_4(m) - \log_4(n) \) (incorrect sign for the \( \log_4(n) \) term)
  • Option #3: \( 3\log_4(9m) - \log_4(n) \) (wrong format)

None of the options correctly match our derived expression exactly. However, if the question required considering \( \log_4(9) \) to take part in a calculation with 3 and \( m \) in a different way, we could explore options again.

From the analysis, you should look for a log property/application that might adjust this or clarify, as the main calculation yields:

Final Expression: \[ \log_4(9) + 3\log_4(m) + \log_4(n) \]

Check wording if specific substitutions applied lead to \( log_4(9m^3) - log_4(n) \) might result in a plausible log equivalence of offered options. Thus would answer determining that per checks here none strictly adherent to ideal simplification, although Option #3 deviates. Results may suggest misalignment on provided concepts.