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: 25


x=-3±2i$\sqrt 2$

Work Step by Step

Original Equation (x+3)²+8=0 Subtract 8 from both sides (x+3)²=-8 Take the square root of both sides x+3=±$\sqrt -8$ Simplify the radical x+3=±2i$\sqrt 2$ Subtract 3 from both sides x=-3±2i$\sqrt 2$
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