Homework Help: Math

Posted by Dawn on Tuesday, October 5, 2010 at 3:31pm.

How do I evaluate the expression for..
The square root of 4?
( I don't know how to do the sign on the computer)

Math - bobpursley, Tuesday, October 5, 2010 at 3:45pm
well, 2^2 is 4, so the sqrt4= + or - 2

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