Answer
$x^2-4x-21=0$
Work Step by Step
Since, $-3,7$ are the solution of the given equation.
Thus, $(x+3)(x-7)=0$
or, $x^2-7x+3x-21=0$
Hence, the desired result is:
$x^2-4x-21=0$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 5 - Section 5.7 - Polynomial Equations and Their Applications - Exercise Set - Page 394: 109
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