The expression "log₂(8) = 3" means that 2 raised to the power of 3 equals 8. In other words, if you multiply 2 by itself three times (2 × 2 × 2), you get 8. This is a fundamental concept in logarithms, which help us understand the relationship between exponents and their bases. In this case, the base is 2, and the number we are taking the logarithm of is 8. Logarithms are useful in various fields, including mathematics, computer science, and engineering, as they simplify complex calculations involving exponential growth or decay.