Answer
$x-6\sqrt{x}+9$
Work Step by Step
Using $(a+b)^2=a^2+2ab+b^2$ , the expression $
(\sqrt{x}-3)^2
$ simplifies to
\begin{array}{l}
(\sqrt{x})+2(\sqrt{x})(-3)+(-3)^2
\\=
x-6\sqrt{x}+9
.\end{array}
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.