Using the method of u$-$substitution,

$25(5$x$8)5$dx$=$abf$($u$)$du

where

u$=$

$5$x$8$

$($enter a function of x$)$

du$=$

$5$

dx $($enter a function of x$)$

a$=$

$2$

$($enter a number$)$

b$=$

$17$

$($enter a number$)$

f$($u$)=$

u$5$du

$($enter a function of u$).$

The value of the original integral is

$2413740530$

$.$Note: You can earn full credit if the last answer box is correct and all other answer boxes are either blank or correct.