Answer
$n=-2$ or $n=-\frac{6}{5}$
Work Step by Step
$7n^2+16n+15=2n^2+3$
$5n^2+16n+12=0$
$5n^2+10n+6n+12=0$
$(n+2)(5n+6)=0$
$n+2=0$ or $5n+6=0$
$n=-2$ or $n=-\frac{6}{5}$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 9 - Quadratic Functions and Equations - 9-4 Factoring to Solve Quadratic Equations - Practice and Problem-Solving Exercises - Page 571: 32
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