$$4 \frac { \sqrt{ 8 } } { \sqrt{ \sqrt{ 256 } } } =2 \sqrt{ 2 }$$
$\text{true}$
$$4\times \frac{2\sqrt{2}}{\sqrt{\sqrt{256}}}=2\sqrt{2}$$
$$4\times \frac{2\sqrt{2}}{\sqrt{16}}=2\sqrt{2}$$
$$4\times \frac{2\sqrt{2}}{4}=2\sqrt{2}$$
$$4\times \frac{1}{2}\sqrt{2}=2\sqrt{2}$$
$$\frac{4}{2}\sqrt{2}=2\sqrt{2}$$
$$2\sqrt{2}=2\sqrt{2}$$
$$2\sqrt{2}-2\sqrt{2}=0$$
$$0=0$$
$$\text{true}$$
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