SOLUTION: What is Sq Rt(x-1) SQUARED? what I am asking is that the problem takes the square root of (x-1) and then squares it. Is it x-1 or x+1. If you could answer the whole problem th

Question 50468: What is Sq Rt(x-1) SQUARED? what I am asking is that the problem takes the square root of (x-1) and then squares it. Is it x-1 or x+1.
If you could answer the whole problem that would be appreciated, but it is a calculus question, but I am stuck on one of the algebra parts.
Thanks.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
For x>=1, [sqrt(x-1)]^2 = x-1
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For all x, sqrt[(x-1)^2]= |x-1|
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Cheers,
Stan H.
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