Simplify Square Roots With Negative Numbers

                    Lesson 1

                                                           The imaginary unit is defined as, i=√-1

                                                            Whenever there is a negative sign inside the root it is written as:

                                                              √-a = √a X √-1 = √ai

                                                            Simplify the remaining part of the radical.

Problem:                   Simplify in terms of i

√-25

Solution                    √-25

Step 1:  

Solution = √25 x √-1

Step 2:                        

Solution = √25 x i

Step 3:           

                                                            Solution                    The answer is:  5i

 Step 3:                                                                      

 Complete   

                                                            Try two practice problems:  

Evaluate the following;

A.	(1/2)√-36
B.	(1/7) √-49

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