1. **State the problem:** Solve the logarithmic equation $$2 \log_3 x - \log_3 (x - 2) = 2$$ for $x$.
2. **Recall logarithm properties:**
- $a \log_b c = \log_b c^a$
- $\log_b A - \log_b B = \log_b \frac{A}{B}$
3. **Apply the power rule:**
$$2 \log_3 x = \log_3 x^2$$
4. **Rewrite the equation using the subtraction rule:**
$$\log_3 x^2 - \log_3 (x - 2) = \log_3 \frac{x^2}{x - 2}$$
5. **Set the equation equal to 2:**
$$\log_3 \frac{x^2}{x - 2} = 2$$
6. **Convert logarithmic form to exponential form:**
$$\frac{x^2}{x - 2} = 3^2$$
$$\frac{x^2}{x - 2} = 9$$
7. **Solve the rational equation:**
$$x^2 = 9(x - 2)$$
$$x^2 = 9x - 18$$
8. **Bring all terms to one side:**
$$x^2 - 9x + 18 = 0$$
9. **Factor the quadratic:**
$$ (x - 6)(x - 3) = 0$$
10. **Find the roots:**
$$x = 6 \quad \text{or} \quad x = 3$$
11. **Check domain restrictions:**
- $x > 0$ because $\log_3 x$ is defined.
- $x - 2 > 0 \Rightarrow x > 2$.
12. **Check solutions:**
- $x = 3$ satisfies $x > 2$.
- $x = 6$ satisfies $x > 2$.
13. **Final answer:**
$$\boxed{x = 3 \text{ or } x = 6}$$
Logarithmic Equation 728Ce0
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