Answer
$4x^2-9$
Work Step by Step
Recall the difference of two squares formula:
$(a-b)(a+b)=a^2-b^2$
By applying this formula, we get:
$$
(2x + 3)(2x - 3)=(2x)^2-3^2=4x^2-9
.$$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.3 Polynomials - A.3 Assess Your Understanding - Page A31: 67
Update this answer!
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.
