$$\left({\mathtt{3}}{\mathtt{\,\small\textbf+\,}}{\sqrt{\mathrm{ERROR}{{\sqrt{{\mathtt{2}}}}}^{\,{\mathtt{2}}}}}\right) = {\mathtt{3}}{\mathtt{\,\small\textbf+\,}}ABC$$
You do not have enough closing brackets Is this your question ?
$$\\(3+\sqrt{2})(2+\sqrt{2})^2$$