1. **State the problem:** Solve the equation $$x = \sqrt{x-1} - 2$$ for $$x > 2$$.
2. **Rewrite the equation:** Add 2 to both sides to isolate the square root:
$$x + 2 = \sqrt{x-1}$$
3. **Square both sides** to eliminate the square root:
$$ (x + 2)^2 = (\sqrt{x-1})^2 $$
$$ (x + 2)^2 = x - 1 $$
4. **Expand the left side:**
$$ (x + 2)^2 = x^2 + 4x + 4 $$
5. **Set up the quadratic equation:**
$$ x^2 + 4x + 4 = x - 1 $$
6. **Bring all terms to one side:**
$$ x^2 + 4x + 4 - x + 1 = 0 $$
$$ x^2 + 3x + 5 = 0 $$
7. **Solve the quadratic equation:**
Use the quadratic formula:
$$ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} $$
where $$a=1$$, $$b=3$$, $$c=5$$.
Calculate the discriminant:
$$ \Delta = 3^2 - 4 \times 1 \times 5 = 9 - 20 = -11 $$
Since $$\Delta < 0$$, there are no real solutions.
8. **Check the domain:** The original equation requires $$x > 2$$ and the square root is defined for $$x-1 \geq 0$$, so $$x \geq 1$$.
9. **Conclusion:** No real solutions satisfy the equation for $$x > 2$$.
**Final answer:** No real solutions for $$x > 2$$.
Solve Radical F18D1B
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.