Answer
$x=-\dfrac{7}{8}$
Work Step by Step
The solution to the given expression, $
x(x-3)=x^2+5x+7
$, is
\begin{array}{l}
x^2-3x-x^2-5x-7=0
\\\\
-8x-7=0
\\\\
-8x=0+7
\\\\
-8x=7
\\\\
x=\dfrac{7}{-8}
\\\\
x=-\dfrac{7}{8}
.\end{array}
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.8 - Solving Equations by Factoring and Problem Solving - Exercise Set - Page 323: 63
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