Lesson 2
1. Lesson 2
1.8. Explore 4
Module 5: Radicals
Self-Check 3
Change the following mixed radicals into entire radicals, and state any restrictions on the variables. Check by using a calculator to compute the numerical value of both the question and the answer.
Did You Know?
Although radical numbers, such as the square root of 2, have been known since the time of ancient Greece, about 2600 years ago, the radical sign 
has only been used for about 600 years. It first appeared in print in a German algebra book by Christoff Rudolff. This book also introduced the use of + and − signs.
If you haven’t already done so, you should update your Glossary Terms document with definitions from this lesson. Remember to save your updated document to your course folder.
The term to be added from this lesson is
- restrictions