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Math: Algebra
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Exponents |
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What is an exponent? | |
An exponent is just an easy way of writing repeated multiplications of the same number. | |
For example, 2 x 2 x 2 can be written as 23 | |
In the above example, 2 is called the base (the number that is being multiplied) and 3 is called the exponent (number of times the base number must be multiplied by itself). | |
23 is also called “2 raised to the power of 3.” | |
Commonly used powers have special names: |
- square – power of 2 (Example: 42 is 4 squared )
- cube – power of 3 (Example: 43 is 4 cubed)
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Exponents come in handy when we are dealing with unknown numbers. Let us look at an example: |
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