Răspuns :
[tex] x^{2} =162=\ \textgreater \ x= \sqrt{162} \\\\
Descompunem~radicalul:\\
162|2\\
~~~81|3\\
~~~27|3\\
~~~~~9|3\\
~~~~~3|3\\
~~~~~1|\\\\
=\ \textgreater \ \sqrt{162} =9 \sqrt{2} \\\\
Raspuns~final: x^{2} =162=\ \textgreater \ x=(9 \sqrt{2})^2 [/tex]