Answer
$(x+1)$
Work Step by Step
$\sqrt (x^{2}+2x+1)$
$=\sqrt (x+1)(x+1)$
$=\sqrt (x+1)^{2}$
$=(x+1)$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.