Intermediate Algebra (6th Edition)

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

Chapter 5 - Section 5.8 - Solving Equations by Factoring and Problem Solving - Graphing Calculator Explorations: 3


$z=3$ and $z=-7$

Work Step by Step

$(z-3)(z+7)=0$ Original problem. $(z-3)=0$ and $(z+7)=0$ Set both factors equal to zero. $z-3=0$ and $z+7=0$ Drop the parenthesis. $z=3$ and $z=-7$ Solve both mini-equations.
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