1. **Problem statement:** Expand the logarithmic expressions using the properties of logarithms.
2. **Recall the properties:**
- $\log_a(xy) = \log_a x + \log_a y$
- $\log_a\left(\frac{x}{y}\right) = \log_a x - \log_a y$
- $\log_a(x)^r = r \log_a x$
- $\log_a 1 = 0$
- $\log_a a = 1$
3. **Example 1: Expand $\log_7(5x)$**
- Using the product property: $\log_7(5x) = \log_7 5 + \log_7 x$
4. **Example 2: Expand $\log_4 x^3$**
- Using the power property: $\log_4 x^3 = 3 \log_4 x$
**Final answers:**
- $\log_7(5x) = \log_7 5 + \log_7 x$
- $\log_4 x^3 = 3 \log_4 x$
Logarithm Expansion 366Da3
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