Answer
{-7, 1}
Work Step by Step
1. Factor the equation.
$x^{2}$ + 6x - 7 = 0
(x + 7)(x - 1) = 0
2. Apply the zero factor principle.
a) x + 7 = 0
b) x - 1 = 0
3. Solve each equation.
a) x = -7
b) x = 1
The solutions are {-7, 1}.
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: 34
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