Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.7 - Equations - Exercise Set: 55

Answer

$\left\{-2, 5\right\}$

Work Step by Step

Factor the trinomial to obtain: $(x-5)(x+2)=0$ Equate each factor to zero then solve each equation to obtain: $x-5 = 0 \text{ o } x+2=0 \\x=5 \text{ or } x=-2$ The solution set of the given equation is $\left\{-2, 5\right\}$.
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