Logarithm Simplification 8Ff4Dc
1. **State the problem:** Simplify the expression $$\log(2)\sqrt{2x+2\sqrt{x^2-1}} + \log(2)(\sqrt{x+1} - \sqrt{x-1})$$.
2. **Recall important formulas and rules:**
- The logarithm $$\log(2)$$ is a constant multiplier.
- Simplify inside the square roots first.
- Use algebraic identities such as $$\sqrt{a} + \sqrt{b}$$ and difference of squares.
3. **Simplify the first square root:**
$$\sqrt{2x + 2\sqrt{x^2 - 1}} = \sqrt{2\left(x + \sqrt{x^2 - 1}\right)} = \sqrt{2} \sqrt{x + \sqrt{x^2 - 1}}$$
4. **Simplify $$\sqrt{x + \sqrt{x^2 - 1}}$$:**
Note that $$\sqrt{x + \sqrt{x^2 - 1}} = \sqrt{\frac{(\sqrt{x+1} + \sqrt{x-1})^2}{2}} = \frac{\sqrt{x+1} + \sqrt{x-1}}{\sqrt{2}}$$.
5. **Substitute back:**
$$\sqrt{2} \times \frac{\sqrt{x+1} + \sqrt{x-1}}{\sqrt{2}} = \sqrt{x+1} + \sqrt{x-1}$$
6. **Rewrite the original expression:**
$$\log(2)(\sqrt{x+1} + \sqrt{x-1}) + \log(2)(\sqrt{x+1} - \sqrt{x-1})$$
7. **Factor out $$\log(2)$$:**
$$\log(2) \left[(\sqrt{x+1} + \sqrt{x-1}) + (\sqrt{x+1} - \sqrt{x-1})\right] = \log(2) (2\sqrt{x+1})$$
8. **Final simplified expression:**
$$2 \log(2) \sqrt{x+1}$$
**Answer:** $$2 \log(2) \sqrt{x+1}$$