Problem 15

Question

Use properties of logarithms to expand each logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator. $$\log _{b} x^{3}$$

Step-by-Step Solution

Verified
Answer
The expanded form of the logarithmic expression \(\log _{b} x^{3}\) is \(3 \log _{b} x\).
1Step 1: Identify the Expression
We expand the logarithmic expression:
Use properties of logarithms to expand each logarithmic expression as much as
possible. Where possible, evaluate logarithmic expressions without using a
calculator.
$$\log _{b} x^{3}$$
2Step 2: Apply Logarithm Rules
  • Product Rule: \(\log_b(MN) = \log_b(M) + \log_b(N)\)
  • Quotient Rule: \(\log_b(M/N) = \log_b(M) - \log_b(N)\)
  • Power Rule: \(\log_b(M^p) = p\log_b(M)\)
3Step 3: Expanded Expression
The expanded form of the logarithmic expression \(\log _{b} x^{3}\) is \(3 \log _{b} x\).