1. Lesson 4

1.11. Explore 7

Mathematics 20-2 Module 5 Lesson 4

Module 5: Radicals

 

Self-Check 2

 

Simplify the following radicals, and state any restrictions on the variables.

  1. m5_eqn466.eps Answer

  2. m5_eqn467.eps Answer

  3. m5_eqn468.eps Answer

  4. m5_eqn469.eps Answer

If you need extra practice dividing radicals, work through the Simplifying Radicals—Activity A gizmo. Skip all the questions that say “Simplify by rationalizing the denominator” by clicking on the “New” button to go to the next question. When you are sure you are comfortable with the skills, complete Assessment Questions 1, 2, 4, and 5 at the bottom. Then click on the “Check Your Answers” button.

 

 

This is a screenshot for Simplifying Radicals—Activity A.

Screenshot reprinted with permission of ExploreLearning.




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Review the rules for working with radicals by looking at “Key Idea” and “Need to Know” on page 197 of your textbook. The last point will be used in the next lesson, so you can put it on hold until then.

 

Also, review the rules for working with radicals containing variables by looking at “Key Ideas” and “Need to Know” on page 211 of your textbook.