Answer
$a^2b^2-4$
Work Step by Step
RECALL:
$(a+b)(a-b)=a^2-b^2$
Use the formula above to have:
$(ab+2)(ab-2)
\\=(ab)^2-2^2
\\=a^2b^2-4$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 10 - Section 10.4 - Special Products - Exercise - Page 352: 31
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.
