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Practice set b
Write each of the following so that only positive exponents appear.
Sample set c
Rewrite
in a simpler form.
Notice that we are dividing powers with the same base. We’ll proceed by using the rules of exponents.
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Write
so that no denominator appears.
We can eliminate the denominator by moving all factors that make up the denominator to the numerator.
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Find the value of
.
We can evaluate this expression by eliminating the negative exponents.
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Practice set c
Exercises
Write the following expressions using only positive exponents. Assume all variables are nonzero.
For the following problems, evaluate each numerical expression.
For the following problems, write each expression so that only positive exponents appear.
Exercises for review
Questions & Answers
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Source:
OpenStax, Elementary algebra. OpenStax CNX. May 08, 2009 Download for free at http://cnx.org/content/col10614/1.3
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