College Algebra (11th Edition)

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: 8

Answer

The first pair of numbers is -16 and -14. The other pair of numbers if 14 and 16.

Work Step by Step

$$x(x+2)=224$$ $$x^2+2x=224$$ $$x^2+2x-224$$ $$(x+16)(x-14)=0$$ $$x=-16,14$$ The first pair of numbers is -16 and -14. The other pair of numbers if 14 and 16.
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