SOLUTION: Is (SQRTofX)^2=X an identity (true for all nonnegative values of x)? Answer: Explain your answer in this space.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Is (SQRTofX)^2=X an identity (true for all nonnegative values of x)? Answer: Explain your answer in this space.       Log On


   



Question 77319: Is (SQRTofX)^2=X an identity (true for all nonnegative values of x)?
Answer:
Explain your answer in this space.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
No it is not. The domain for sqrt%28x%29 is x>0 so if x<0 then the equation is not true. So that means %28sqrt%28x%29%29%5E2=x is not an identity.