Answer
$ \sqrt[3] {2x}(2x-1)$
Work Step by Step
$\sqrt[3] {16x^4}-\sqrt[3] {2x}=\sqrt[3] {2^4x^4}-\sqrt[3] {2x}=2x\sqrt[3] {2x}-\sqrt[3] {2x}=\sqrt[3] {2x}(2x-1)$
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