Evaluate the integral $\displaystyle \int{\frac{{{\left.{d}{x}\right.}}}{{{\left({2}{x}+{6}\right)}}}}$, by making the appropriate substitution: u = 
Preview Question 6 Part 1 of 2  

$\displaystyle \int{\frac{{{\left.{d}{x}\right.}}}{{{\left({2}{x}+{6}\right)}}}}$ =
Preview Question 6 Part 2 of 2