Posted by mimi on Wednesday, March 2, 2011 at 8:42pm.
simplify:
√(x^2+2x+1)
=√(x+1)²
=x+1
Please use encoding Western ISO-8853-1 or equivalent when posting mathematical symbols. Otherwise we have to try many encodings before finding which one you used, and that does not help you get your answer faster.
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