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Negative Exponents

An exponent can be negative . A number with a negative
exponent is the same as 1 divided by the number with a
positive exponent .

Example: Write with a positive exponent z -4.
Solution : Write as a fraction with a positive exponent.
1/z4
Therefore z-4 = 1/z4

Scientific Notation:
Scientific Notation is used to name large numbers such as
324,000. A number in scientific notation has two factors .

You can find the large number by multiplying .
3.24 * 105=3.24 * 100,000=324000. = 324,000

Move the decimal point one place for each zero in the
power of ten. This is the same as the exponent in the
second factor . Move to the right when the exponent is
positive .

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