Answer
$x=-8$ or $8$
Work Step by Step
$\frac{x-2}{5} = \frac{12}{x+2}$
$(x-2)(x+2) = 12\times5$
$x^{2}-4 = 60$
$x^{2}-64 = 0$
$(x+8)(x-8) = 0$
$x=-8$ or $8$
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 5 - Section 5.1 - Ratios, Rates, and Proportions - Exercises - Page 228: 10b
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