Write the Word or Phrase That Best Completes Each Statement $\begin{gathered}\sqrt{x}+3=5 \\\sqrt{x}=2 \\(\sqrt{x})^{2}=2^{2} \\x=4\end{gathered}$

Essay

Write the word or phrase that best completes each statement or answers the question.
-Consider the following:
$\begin{gathered}\sqrt{x}+3=5 \\\sqrt{x}=2 \\(\sqrt{x})^{2}=2^{2} \\x=4\end{gathered}$
What would have happened if the radical had not been isolated before the principle of squaring was used? Could the equation still have been solved? Why or why not?