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Concept

Exponent

An exponent is a number or expression written above a number, indicating that it is being multiplied by itself. The notation is made up of a base — the number being multiplied — and an exponent, which gives the number of times the base appears in the multiplication.
Potenser1 en.svg
The resulting number is commonly called a power. In this example, the base 7 is multiplied by itself 4 times.
Most exponential expressions are read in the same way, whether they are numeric or algebraic.
Expression Example 1 Example 2
74 7 raised to the power of 4 7 raised to the fourth power
x9 x to the power of 9 x to the ninth power
2 to the second 2 squared
m to the third m cubed

Notice in the examples above that two special cases were included; when a number or variable is raised to the power of 2 or 3, the exponential expression can be read as squared or cubed, respectively.

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