Select the basic integration formula you can use to find the indefinite integral. Do not integrate.

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{10}{\sqrt[\phantom{2}]{x}(19-2\sqrt[\phantom{2}]{x})}dx$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{du}{u}$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}du$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}{e}^{u}du$

Identify $u.$

$u=$

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