Answer
$x=-\frac{7}{5}$
Work Step by Step
We solve by factoring:
$25x^{2}+70x+49=0$
$(5x+7)^{2}=0$
$5x+7=0$
$x=-\frac{7}{5}$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 1, Equations and Graphs - Section 1.4 - Solving Quadratic Equations - 1.4 Exercises - Page 123: 44
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