Question: Simplify:
$$(\sqrt{10} - \sqrt{12})(12\sqrt{10} - 10\sqrt{12})$$
Note: Enter your answer in radical form.
1. **State the problem:** Simplify the expression $$(\sqrt{10} - \sqrt{12})(12\sqrt{10} - 10\sqrt{12})$$.
2. **Use the distributive property (FOIL) to expand:**
$$ (\sqrt{10})(12\sqrt{10}) - (\sqrt{10})(10\sqrt{12}) - (\sqrt{12})(12\sqrt{10}) + (\sqrt{12})(10\sqrt{12}) $$
3. **Simplify each term:**
- $$(\sqrt{10})(12\sqrt{10}) = 12(\sqrt{10} \times \sqrt{10}) = 12 \times 10 = 120$$
- $$(\sqrt{10})(10\sqrt{12}) = 10(\sqrt{10} \times \sqrt{12}) = 10\sqrt{120}$$
- $$(\sqrt{12})(12\sqrt{10}) = 12(\sqrt{12} \times \sqrt{10}) = 12\sqrt{120}$$
- $$(\sqrt{12})(10\sqrt{12}) = 10(\sqrt{12} \times \sqrt{12}) = 10 \times 12 = 120$$
4. **Rewrite the expression with simplified terms:**
$$ 120 - 10\sqrt{120} - 12\sqrt{120} + 120 $$
5. **Combine like terms:**
$$ 120 + 120 - (10\sqrt{120} + 12\sqrt{120}) = 240 - 22\sqrt{120} $$
6. **Simplify the radical $\sqrt{120}$:**
$$ \sqrt{120} = \sqrt{4 \times 30} = \sqrt{4} \times \sqrt{30} = 2\sqrt{30} $$
7. **Substitute back:**
$$ 240 - 22 \times 2 \sqrt{30} = 240 - 44\sqrt{30} $$
**Final answer:**
$$ \boxed{240 - 44\sqrt{30}} $$