1. **State the problem:** Solve the equation $$^m\log(2x + 6) \cdot ^5\log m = 2$$ for $x$.
2. **Recall the change of base formula:** For any positive numbers $a,b,c$ with $a \neq 1$, $$^a\log b = \frac{\log b}{\log a}$$ where $\log$ is the logarithm in any fixed base (e.g., base 10 or $e$).
3. **Rewrite the given equation using the change of base formula:**
$$^m\log(2x + 6) = \frac{\log(2x + 6)}{\log m}$$
$$^5\log m = \frac{\log m}{\log 5}$$
4. **Substitute these into the equation:**
$$\frac{\log(2x + 6)}{\log m} \cdot \frac{\log m}{\log 5} = 2$$
5. **Simplify by canceling $\log m$:**
$$\frac{\cancel{\log m} \cdot \log(2x + 6)}{\cancel{\log m} \cdot \log 5} = 2$$
which simplifies to
$$\frac{\log(2x + 6)}{\log 5} = 2$$
6. **Multiply both sides by $\log 5$:**
$$\log(2x + 6) = 2 \log 5$$
7. **Use the logarithm power rule:**
$$2 \log 5 = \log 5^2 = \log 25$$
8. **Equate the arguments of the logarithms:**
Since $\log(2x + 6) = \log 25$, we have
$$2x + 6 = 25$$
9. **Solve for $x$:**
$$2x = 25 - 6 = 19$$
$$x = \frac{19}{2} = 9.5$$
10. **Check domain restrictions:**
The argument of the logarithm must be positive:
$$2x + 6 > 0 \implies x > -3$$
Since $9.5 > -3$, the solution is valid.
**Final answer:**
$$x = 9.5$$
Logarithm Equation 6197D8
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.