5.5 The Substitution Rule/53

$\int _{0}^{1}x^{2}(1+2x^{3})^{5}dr$

${\begin{aligned}u&=1+2x^{3}\\[2ex]\end{aligned}}$

${\begin{aligned}du&=6x^{2}dx\\[2ex]\end{aligned}}$

<math> \begin{align}

\int_{1}^{3}