SOLUTION: I am having a problem solving this problem: Is the square root of x^2 =x an identity (true for all values of x)? Thanks for your time.

Question 51869: I am having a problem solving this problem:
Is the square root of x^2 =x an identity (true for all values of x)?
Thanks for your time.
Answer by THANApHD(104) (Show Source): You can put this solution on YOUR website!
Not for only the positive x s but also negative
U see If u multiply x*x = x^2
but also (-x)*(-x) also equals to x^2
So squareroot that is written like x^(1/2)
So square root of X^2 is equal to both (-x) and x(positive)

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