Derivatives of Powers of linear expressions

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Find the derivative $\;\;\;\frac{d}{dx}\left(18x^{\frac{-5}{3}}-3x\right)^{2}$

**Answer**

$\;\;\;\frac{d}{dx}\left(18x^{\frac{-5}{3}}-3x\right)^{2}$

$=2\left(18x^{\frac{-5}{3}}-3x\right)\left(-30x^{\frac{-8}{3}}-3\right)$