Evaluate. $($Be sure to check by differentiatingl$)$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{ln{x}^{29}}{x}dx,x>0,(Hint$: Use the properties $of$ logarithms.$)$

${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}\frac{ln{x}^{29}}{x}dx=$

$($Type an exact answer. Use parentheses to clearly denote the argument of each function.$)$