Answer
The pair of integers is 20 and 22.
Work Step by Step
$$(x+2)^2-x^2=84$$
$$x^2+4x+4-x^2=84$$
$$4x+4=84$$
$$4x=80$$
$$x=20$$
The pair of integers is 20 and 22.
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter 1 - Section 1.5 - Applications and Modeling with Quadratic Equations - 1.5 Exercises - Page 119: 13
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