Answer
$u=(5x-8).$
$y=u^4.$
Work Step by Step
Working from the inside out:
Take $x$; multiply it by 5 and deduct 8 $\leftarrow$ "inner function."
Take $(5x-8)$; raise it to the power of $4\leftarrow$"outer function."
$u=(5x-8).$
$y=u^4.$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.