1. The problem asks to solve or analyze what is referenced as "2.2.6". Since no explicit problem statement was given, I assume it refers to a particular algebra or math exercise normally labeled as 2.2.6. 2. Without exact details, I cannot provide a specific solution. Please provide the exact problem text or details for 2.2.6. 3. Once you provide the problem statement, I will solve it step-by-step and explain all the intermediate steps clearly.