7.1 Integration By Parts/54

$y=5\ln(x),y=x\ln(x)$

${\begin{aligned}5\ln(x)&=x\ln(x)\\[1ex]&x=5\\[1ex]&x=1\\[1ex]\end{aligned}}$

$\int _{a}^{b}\left(f(x)-g(x)\right)dx$