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Homework Statement
Can someone explain to me how [tex]|-4|= \sqrt{(-4)^{2}}[/tex]
I'm wondering why you can't cancel out the square root sign and the square above the -4, to leave you with -4.
The Attempt at a Solution
I know this has something to do with the absolute value of -4, being 4, but I just don't completely understand why you can't cancel out the square root sign and the square.