5.02  Cube Roots and More

Basic Algebra: One Step at a Time.  Page 403 - 412:   #54, 58.

Dr. Robert J. Rapalje

Seminole State College of Florida

Sanford, FL  32773

To see Section 5.02, with detailed explanations, examples, exercises, and answers, click here!

p. 403 - 412:

   54.           

Solution:  Before you begin cube root problem, you must remember the perfect cube numbers, i.e., , and find the perfect cube that divides evenly into . 

The only perfect cube that divides evenly into  is .  Break down the  into .

Since this is a numerical problem you can check the answer by calculating the decimal value of the problem and then calculating the value of the answer to see if these values are the same.

                          = 3.77976315

                    = 3.77976315  --  It checks!!

  58.           

Solution:  Before you begin cube root problem, you must remember the perfect cube numbers, i.e., , and find the perfect cube that divides evenly into . 

The only perfect cube that divides evenly into  is .  Break down the  into .

Since this is a numerical problem you can check the answer by calculating the decimal value of the problem and then calculating the value of the answer to see if these values are the same.

                           = 4.30886938

                    = 4.30886938  --  It checks!!

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