SOLUTION: Is sqrt of x^2 an identity (true for all values of x?) explain your answer

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Question 73043: Is sqrt of x^2 an identity (true for all values of x?) explain your answer
Answer by rmromero(383) About Me  (Show Source):
You can put this solution on YOUR website!



Is radicalx^2=x an identity (true for all values of x)?



No. 



Let say we have x = -1



            = -1 ?

               = -1

                1 = -1  -------> Not true for 1 is not equal to -1



and so as the other negative numbers.