The expression you've provided is:

\[
\sqrt{6} - 2\sqrt{6}
\]

To simplify this, we treat \(\sqrt{6}\) as a common term, similar to how we would with a variable.

\[
\sqrt{6} - 2\sqrt{6} = (1 - 2)\sqrt{6} = -\sqrt{6}
\]

So, the simplified expression is:

\[
-\sqrt{6}
\]

Would you like further details on this, or do you have any other questions?

Here are 5 related questions to explore:

1. How do you add or subtract radicals that have different radicands?
2. What happens if you multiply \(\sqrt{6}\) by itself?
3. How would you simplify the expression \(\sqrt{6} + \sqrt{2}\)?
4. What is the result of \(\sqrt{6} \times 2\sqrt{6}\)?
5. Can you simplify the expression \(\sqrt{8} - 2\sqrt{2}\)?

**Tip:** When simplifying radicals, always check if you can factor out common terms to make the process easier!

Learn how to simplify the radical expression sqrt(6) - 2sqrt(6) step-by-step. This problem involves radicals and simplifying expressions, suitable for high school students. Explore related questions on adding, subtracting, and multiplying radicals.

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