\[
\left( \sqrt{17.8} \right)^2 = 17.8
\]

Since the square of a square root cancels out the square root itself, the answer is simply 17.8.

Would you like more details on this concept or have any questions?

Here are five related questions:
1. What is the square of \( \sqrt{25} \)?
2. Simplify \( \left(\sqrt{7}\right)^2 \).
3. What is \( \sqrt{x^2} \) when \( x = 9 \)?
4. How do you simplify \( \left(\sqrt{a}\right)^2 \) for any positive real number \( a \)?
5. Solve \( \left( \sqrt{49.5} \right)^2 \).

**Tip**: The square of a square root always returns the original value inside the root, assuming the value is non-negative.

The query submitted by the user: (\sqrt{17.8})^2 =

Explore how to simplify (√17.8)^2 with a clear explanation. Understand how square roots and exponents interact and why the square of a square root returns the original value. Suitable for students in Grades 6-8.

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