Rule 2: To divide identical bases, subtract the exponents.
Example 6: Simplify .
Solution: You may only combine the base 6's; you may not combine the 5 and the 8.
Note that can be written
which can be simplified to
which in turn can be simplified to
.
You can check your answer with your calculator.
If you would like to review another example, click on Example.
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Author: Nancy Marcus