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Multiplying and Dividing Rational Expressions - Problem 5
To multiply rational expressions when the tops and bottoms are all monomials, we'll be using the rules of exponents: multiply the constants, but add the exponents on terms that are the same base. You have a choice of simplifying each fraction before you start, or multiplying and then simplifying the result at the end. The domain restrictions are any values of variables that would make the denominators equal zero.
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