January 24, 2013
Lesson 7.2
Multiplying and Dividing Rational Expressions
Multiplying Rational Expressions
1. Factor each numerator and denominator completely.
2. Divide out any numerator factor with any matching
denominator factor.
3. Simplify as needed.
Simplify
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January 24, 2013
Simplify
Now try
(3x+5)(x-1)
(x-2)(x-3)
(x+1)(x-5)
•
(3x+1)(x-1)
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January 24, 2013
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January 24, 2013
Dividing Rational Expressions
Simplify
What value for x must be ruled out?
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January 24, 2013
Dividing Rational Expressions
1. Write an equivalent multiplication statement with
the reciprocal of the divisor.
2. Factor each numerator and denominator completely.
3. Divide out any numerator factor with any matching
denominator factor.
4. Simplify as needed.
Divide
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