An exponential expression is a mathematical expression that involves a base raised to a power. It has the general form of "a raised to the power of b," where "a" represents the base and "b" represents the exponent. The exponent indicates how many times the base is multiplied by itself.
For example, in the expression 2^3, the base is 2, and the exponent is 3. This means that 2 is multiplied by itself three times: 2 * 2 * 2 = 8. So, 2^3 is equal to 8.
Exponential expressions can also include negative exponents, fractional exponents, or variables as the base or exponent. They are widely used in various fields of mathematics, science, and finance to model exponential growth, decay, and other phenomena.