#### Answer

$2x(6x^2-1)$

#### Work Step by Step

Area of shaded region $=$ area of large rectangle $-$ area of small rectangle
$=12x \times x^2 - 2 \times x$
$=12x^3-2x$
$=2x(6x^2-1)$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$2x(6x^2-1)$

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.