Answer
$(3x^2-\frac{3}{2\sqrt x})dx$
Work Step by Step
Given $y=x^3-3\sqrt x=x^3-3x^{1/2}$, we have $dy=3x^2dx-\frac{3}{2}x^{-1/2}dx=(3x^2-\frac{3}{2\sqrt x})dx$
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