What are exponents? Exponential notation is a form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter written above and to the right of a mathematical expression called the base. It indicates that the base is to be raised to a certain power. x is the base and n is the exponent or power.
Definition: If x is a positive number and n is its exponent, then xn means x is multiplied by itself n times.
Examples:
32 = 3 x 3
35 = 3 x 3 x 3 x 3 x 3
Rules of exponents
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