Answer
$\frac{5x\sqrt[3] x}{7}$
Work Step by Step
$\frac{\sqrt[3] {8x^4}}{7}+\frac{3x\sqrt[3] x}{7}$
$\frac{2x\sqrt[3] x}{7}+\frac{3x\sqrt[3] x}{7}$ The LCD is 7.
$\frac{5x\sqrt[3] x}{7}$ Add.
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