1 + 1 = 2.

Would you like any further details or have any other questions? Here are some questions you might consider asking next:

1. How do you solve a quadratic equation?
2. What is the derivative of $x^2 + 3x + 2$?
3. How do you find the area of a circle?
4. Can you explain the Pythagorean theorem?
5. How do you simplify the expression $2(x + 3)$?

Tip: Always double-check your calculations to ensure accuracy, especially with more complex problems.