Simplify fourth root of 256x^8

$\sqrt[4]{256 x^{8}}$

Step 1

Rewrite $256 x^{8}$ as ${(4 x^{2})}^{4}$ .

$\sqrt[4]{{(4 x^{2})}^{4}}$

Step 2

Pull terms out from under the radical, assuming positive real numbers.

$4 x^{2}$

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