8.1.2 Multiplying and Dividing Rational Expressions - Practice
1. Simplify. Identify any x -values for which the expression is undefined.
2. Simplify. Identify any x -values for which the expression is undefined. x x x x 5 8 15 2 2 − − +
x x x x 2 2
8 12 2 8
+ + − −
4. Divide. Assume that all expressions are defined. x x x x x x x 2 15 2 3 1 9 8 9 2 2 2 2 − − + + ÷ − − −
3. Multiply. Assume that all expressions are defined. x x x x x 4 2 18 7 18 16 2 2 − − ⋅ − − −
5. Solve.
6. Solve. x x 2 − +
x x x 2 5 3 3 2 + − +
9 4 3 2
7
4
=
=
171
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