Example

Simplifying 34x3\frac{3}{\sqrt[3]{4x}}

To simplify 34x3\frac{3}{\sqrt[3]{4x}}, note that 4x3=22x3\sqrt[3]{4x} = \sqrt[3]{2^2 x}. To rationalize, multiply numerator and denominator by 2x23\sqrt[3]{2x^2} to complete the factors of 2 and xx to the third power. This yields 32x2323x33=32x232x\frac{3\sqrt[3]{2x^2}}{\sqrt[3]{2^3 x^3}} = \frac{3\sqrt[3]{2x^2}}{2x}.

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Updated 2026-05-25

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