Question $2$

$1$ pts

Integrate the function.

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{x^3}{\sqrt[\phantom{2}]{x^{2}9}}dx$

$\frac{1}{3}(x^{2}9{)}^{\frac{3}{2}}ta{n}^{-1}(\frac{x}{9})C$

$\frac{1}{3}\sqrt[\phantom{2}]{x^{2}9}-\frac{9}{\sqrt[\phantom{2}]{x^{2}9}}C$

$\frac{1}{3}(x^{2}9{)}^{\frac{3}{2}}-9\sqrt[\phantom{2}]{x^{2}9}C$

$\frac{1}{9}(x^{2}9{)}^{\frac{3}{2}}-\sqrt[\phantom{2}]{x^{2}9}C$

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