1. **State the problem:** Solve the inequality $x \ln(x-1) - 2 > 0$.
2. **Rewrite the inequality:**
$$x \ln(x-1) > 2$$
3. **Domain considerations:**
Since $\ln(x-1)$ is defined only for $x-1 > 0$, we have:
$$x > 1$$
4. **Analyze the function:**
Define $f(x) = x \ln(x-1)$. We want to find where $f(x) > 2$ for $x > 1$.
5. **Check behavior near domain start:**
As $x \to 1^+$, $\ln(x-1) \to -\infty$, so $f(x) \to 1 \cdot (-\infty) = -\infty$.
6. **Check for critical points:**
Find $f'(x)$:
$$f'(x) = \ln(x-1) + \frac{x}{x-1}$$
7. **Set derivative to zero to find extrema:**
$$\ln(x-1) + \frac{x}{x-1} = 0$$
8. **Solve for $x$ numerically:**
This transcendental equation has a unique minimum at some $x > 1$. Approximate numerically (e.g., $x \approx 1.8$).
9. **Check values of $f(x)$ at critical points and at large $x$:**
- At $x=2$, $f(2) = 2 \ln(1) = 0$.
- At $x=3$, $f(3) = 3 \ln(2) \approx 3 \times 0.693 = 2.079 > 2$.
10. **Find exact solution for $f(x) = 2$:**
Solve:
$$x \ln(x-1) = 2$$
11. **Use substitution:**
Let $t = x-1$, so $x = t+1$, $t > 0$.
Equation becomes:
$$(t+1) \ln t = 2$$
12. **Numerical approximation:**
Try $t=1.5$:
$$(1.5+1) \ln 1.5 = 2.5 \times 0.405 = 1.0125 < 2$$
Try $t=3$:
$$(3+1) \ln 3 = 4 \times 1.0986 = 4.3944 > 2$$
Try $t=1.8$:
$$(1.8+1) \ln 1.8 = 2.8 \times 0.5878 = 1.646 < 2$$
Try $t=2.5$:
$$(2.5+1) \ln 2.5 = 3.5 \times 0.9163 = 3.207 > 2$$
Try $t=2$:
$$(2+1) \ln 2 = 3 \times 0.693 = 2.079 > 2$$
Try $t=1.9$:
$$(1.9+1) \ln 1.9 = 2.9 \times 0.6419 = 1.862 < 2$$
Try $t=1.95$:
$$(1.95+1) \ln 1.95 = 2.95 \times 0.6678 = 1.969 < 2$$
Try $t=1.98$:
$$(1.98+1) \ln 1.98 = 2.98 \times 0.6831 = 2.035 > 2$$
So root $t_0 \approx 1.97$.
13. **Final solution:**
Since $f(x)$ is increasing for $x >$ minimum point and $f(x) > 2$ for $x > x_0 = t_0 + 1 \approx 2.97$, the solution to the inequality is:
$$\boxed{x > 2.97}$$
**Summary:**
- Domain: $x > 1$
- Inequality holds for $x > 2.97$ approximately.
Solve Xlnx 1 B21C82
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