1. Lesson 2

1.8. Explore 4

Mathematics 30-2 Module 5

Module 5: Rational Expressions

 

Next, you will multiply rational expressions that include binomial numerators or denominators. The same fraction multiplication rule you used in Try This 2 is used when you have rational expressions with binomials.
 

In the next Try This activity you will multiply rational expressions of various forms. Don’t forget to include the non-permissible values when necessary.

 

Try This 4

For each question, complete the following:

  • Multiply the rational expressions as you would rational numbers.
  • Reduce to lowest terms, where possible.
  • Include the non-permissible values with your final answer.

course folder Save your responses in your course folder.

 

Share 2

 

Compare your answers and strategies from Try This 4 with a partner. Discuss the following questions with your partner.

  1. Is it necessary to expand an expression such as  before multiplying? Explain.
  2. Why is factoring a useful step in simplifying an expression?

course folder If required, save a record of your discussion in your course folder.