It looks like you're asking for the summation of factorials from \( x = 1 \) to \( x = 2 \). The expression can be interpreted as:

\[
\sum_{x=1}^{2} x!
\]

This summation can be expanded as:

\[
1! + 2!
\]

Let's calculate each factorial:

\[
1! = 1
\]
\[
2! = 2 \times 1 = 2
\]

Now, sum these values:

\[
1 + 2 = 3
\]

So, the value of \( \sum_{x=1}^{2} x! \) is \( 3 \).

Would you like more details or have any other questions?

Here are some related questions:
1. What is the definition of a factorial?
2. How would the summation change for higher values of \( x \)?
3. What is the factorial of 0?
4. How is factorial used in permutations and combinations?
5. Can you find the sum \( \sum_{x=1}^{3} x! \)?

**Tip:** The factorial of a number \( n \) is the product of all positive integers less than or equal to \( n \).

Learn how to calculate the sum of factorials from 1 to 2, including detailed step-by-step solutions. This problem explores basic factorial calculations and summation concepts. Suitable for high school students.

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