$$3 \sqrt { 2 } - \frac { 2 } { \sqrt { 2 } }$$
$2\sqrt{2}\approx 2.828427125$
$$3\sqrt{2}-\frac{2\sqrt{2}}{\left(\sqrt{2}\right)^{2}}$$
$$3\sqrt{2}-\frac{2\sqrt{2}}{2}$$
$$3\sqrt{2}-\sqrt{2}$$
$$2\sqrt{2}$$
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