2. Square Root The square root of a nonnegative number is a number that, when multiplied by itself, is equal to that nonnegative number. Square roots have positive and negative solutions. The symbol represents a square root. Taking the square root of a number is the opposite, or inverse, of squaring the number.

3. Solving Square Roots

5. Cube Root To find the cube root of a number, find the number that, when multiplied by itself two times (a total of three factors), is equal to that number. The symbol represents a cube root. Taking the cube root of a number is the opposite, or inverse, of cubing a number (raising a number to the third power).

6. Solving Cube Roots

7. Practice Problem 1 SOLUTION

8. Practice Problem 2 SOLUTION

9. Practice Problem 3 SOLUTION

10. Additional Practice

11. Your Task… On a sheet of poster paper… Group #1: Define a rational number. Provide at least 4 examples. Group #2: Define an irrational number. Provide at least 4 examples. Group #3: Define the square root of a number. Be sure to define perfect square, and compare and contrast between a square root and a square. Provide at least 4 examples. Group #4: Define the cube root of a number. Be sure to define perfect cube, and compare and contrast between a cube root and a cube. Provide at least 4 examples. **Do a rough draft on a sheet of notebook paper first. Once I have approved that your information is accurate, you can write it on the poster.**

12. Homework