Find the indefinite integral.

$$

$18($x $7)8$

$$dx

Step $1$

To find the indefinite integral

$18($x $7)8$ dx

$,$

first use the constant multiple rule.

$18($x $7)8$ dx

$=18$

$18$

$($x $7)8$ dx

Step $2$

Let u $=$ x $7.$ Differentiate u with respect to x$,$ du $=$

$.$

Rewrite the integration in terms of u$.$

$18$

$($x $7)8$ dx

$=18$

u du