Answer
$|y-6|$
Work Step by Step
$\sqrt (y-6)^2=|y-6|$
For expressions under the radical sign with an even index, the outcome is inside absolute value bars to ensure a positive result.
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.