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: 11

Answer

z=6±3$\sqrt 2$

Work Step by Step

Original Equation (z-6)²=18 Take the square root of both sides z-6=±$\sqrt 18$ Simplify the radical z-6=±3$\sqrt 2$ Add 6 to both sides z=6±3$\sqrt 2$
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