1. The problem is to evaluate or simplify an expression involving base 2, not base 3. 2. When working with bases, the base indicates the number system used. Base 2 means binary, where each digit represents a power of 2. 3. For example, the number 101 in base 2 is calculated as $$1\times2^2 + 0\times2^1 + 1\times2^0 = 4 + 0 + 1 = 5$$ in decimal. 4. If you have a specific expression or number in base 2, convert each digit by multiplying it by the corresponding power of 2 and sum the results. 5. This method applies to any binary number or expression you need to evaluate or convert. 6. If you provide the exact expression or number, I can help you solve it step-by-step.