Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 8 - Section 8.1 - Solving Quadratic Equations by Completing the Square - Exercise Set: 19


z=±2i$\sqrt 2$

Work Step by Step

Original Equation 2z²+16=0 Subtract 16 from both sides 2z²=-16 Divide both sides by 2 z²=-8 Take the square root of both sides z=±$\sqrt -8$ Simplify the radical z=±2i$\sqrt 2$
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