Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Appendix B - Exercise Set - Page 981: 33


$z=6$ or $z=-3$

Work Step by Step

$z^2-3z-18=0$ $(z-6)(z+3)=0$ $z-6=0$ or $z+3=0$ $z=6$ or $z=-3$
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