SOLUTION: (square root x) to the second power =X

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Question 50561: (square root x) to the second power =X
Found 2 solutions by mszlmb, Nate:
Answer by mszlmb(115) About Me  (Show Source):
You can put this solution on YOUR website!
lol sqrt%28x%29%5E2=x, of course! any number's square root squared is the number! Take a look at these humorously simple examples:

sqrt%28123%29%5E2=123
sqrt%283%29%5E2=3
sqrt%28222%29%5E2=222
sqrt%284%29%5E2=4
sqrt%28n%29%5E2=n
sqrt%28123432%29%5E2=123432
sqrt%28365x%2B5%29%5E2=365x%2B5
sqrt%28-15%29%5E2=-15
sqrt%2833%29%5E2=33

sqrt%280%29%5E2=0
sqrt%28144%29%5E2=144
it is now obvious that
sqrt%28x%29%5E2=x
you see, square root and squared cancel each other out! squared means x*x and square root means y*y=x but it its x squared square rooted, then its y*y=x in x*x, so y is obviously x!

Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
Actually, this is quite easy once you think about it.
sqrt(x^2)
A number times itself must be .... positive!
The square root of a positive number gives us the original number, but it will be positive!
x = -2
sqrt((-2)^2) = sqrt(4) = 2
Does 2 = -2 ? No!
So we dub: sqrt(x^2) = | x | not x