Answer
$n=-4/5, 0$
Work Step by Step
$(5n+1)^2+2(5n+1)-3=0$
$x=5n+1$
$(5n+1)^2+2(5n+1)-3=0$
$x^2+2x-3=0$
$(x+3)(x-1)=0$
$x+3=0$
$x=-3$
$x-1=0$
$x=1$
$-3=5n+1$
$-4=5n$
$-4/5=5n/5$
$-4/5=n$
$1=5n+1$
$0=5n$
$0/5=5n/5$
$n=0$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 11 - Section 11.3 - Solving Equations by Using Quadratic Methods - Exercise Set - Page 787: 21
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