Answer
$n=3, 7/2$
Work Step by Step
$(2n-3)^2-7(2n-3)+12=0$
$2n-3=x$
$(2n-3)^2-7(2n-3)+12=0$
$x^2-7x+12=0$
$(x-4)(x-3)=0$
$(2n-3-4)(2n-3-3)=0$
$(2n-7)(2n-6)=0$
$2n-7=0$
$2n=7$
$2n/2=7/2$
$n=7/2$
$2n-6=0$
$2n=6$
$2n/2=6/2$
$n=3$
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 788: 44
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