Evaluate the integral
(2x+4)(x2+4x+2)4dx\displaystyle \int{\left({2}{x}+{4}\right)}{\left({x}^{{2}}+{4}{x}+{2}\right)}^{{{4}}}{\left.{d}{x}\right.}
by making the substitution u=x2+4x+2\displaystyle {u}={x}^{{2}}+{4}{x}+{2}.

  + C

NOTE: Your answer should be in terms of x\displaystyle {x} and not u\displaystyle {u}.