2-2

If you’re asking about the arithmetic expression, 2 − 2 = 0.

If you meant something else (e.g., “Chapter 2, problem 2” from a specific subject, or a particular 2-2 exercise), please share the problem statement or the subject, and I’ll walk you through it. If you want, I can also show a quick subtraction explanation: 2 − 2 = 2 + (−2) = 0.