4 log 16For example, in the problem given, by rewriting 16 as a power of 4, we made it easier to solve the equation. Once the bases match, equate the exponents and solve it like a regular algebralog2 16 = 4, since 24 = 2 × 2 × 2 × 2 = 16. · Logarithms can also be negative: log 2 1 2 = − 1 {textstyle log _{2}!{frac {1}{2}}=