Final answer:
The equation log8 512=3 expressed in exponential form is 8^3 = 512.
Step-by-step explanation:
The question "Express in exponential form. log8 512=3." involves understanding the relationship between logarithms and exponentials. To express the equation log8 512=3 in exponential form, we use the definition of a logarithm: If logba = c, then bc = a. Here, b = 8, a = 512, and c = 3. So, according to this definition, we can write the equation in exponential form as 83 = 512.