Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - 1.5 - Complex Numbers - 1.5 Exercises - Page 120: 69


x = $-2+\frac{i}{2}$ or $-2-\frac{i}{2}$

Work Step by Step

$4x^2+16x+17=0$ $4x^2+16x+16=-1$ $(2x+4)^2=-1$ $(2x+4)=+i$ or $-i$ $2x= -4+i$ or $-4-i$ $x = -2+i/2$ or $-2-i/2$
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