1. The problem is to understand the meaning or context of "Fu" as it is given without additional information. 2. Since "Fu" is not a mathematical expression or a clear question, we cannot apply formulas or calculations. 3. If "Fu" refers to a variable, function, or abbreviation, please provide more details or context for a proper explanation or solution. 4. Without further information, no algebraic or mathematical steps can be performed. Final answer: Please provide a complete math problem or question for assistance.