Answer
$p=5 \lor p=-10$
Work Step by Step
We will have two cases.
First case: $2p+5=15$
Subtract $5$ from both sides: $2p=10$
Solve for $p$: $p=5$
First case: $2p+5=-15$
Subtract $5$ from both sides: $2p=-20$
Solve for $p$: $p=-10$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 5 Polynomials and Polynomial Functions - 5.6 Find Rational Zeroes - 5.6 Exercises - Mixed Review - Page 377: 54
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