Answer
$x^2-\sqrt{7}x-14=0$
Work Step by Step
$x=2\sqrt{7}$ and $x=-\sqrt{7}$
$x-2\sqrt{7}=0$ and $x+\sqrt{7}=0$
$(x-2\sqrt{7})(x+\sqrt{7})=0$
Therefore, multiplying the factors:
$x^2+\sqrt{7}x-2\sqrt{7}x-14=0$
$x^2-\sqrt{7}x-14=0$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.6 - Other Types of Equations - 1.6 Exercises - Page 129: 88
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