7.1 Integration By Parts/53

$y=xe^{-0.4x}~~~x=0,x=1$

Failed to parse (Conversion error. Server ("https://en.wikipedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle \int _{0}^{5}xe^{-0.4x}dx-\underbrace {3\int \ln(x)^{2}dx} }