Answer
$-\sqrt[3]{2x}$
Work Step by Step
$\sqrt[3] {16x}-\sqrt[3]{54x}$ Factor.
$\sqrt[3] {8}\sqrt[3]{2x}-\sqrt[3]{27}\sqrt[3]{2x}$ Simplify.
$2\sqrt[3]{2x}-3\sqrt[3]{2x}$ Combine like radicals.
$-\sqrt[3]{2x}$
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