Answer
$-3x^2+2x+15$
Work Step by Step
Given: $2x^2-5x+8-(5x^2-7x-7)$
$=2x^2-5x+8-5x^2+7x+7$
Simplify
$=(2x^2-5x^2)+(-5x+7x)+(8+7)$
$=-3x^2+2x+15$
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 - 5.5 Apply the Remainder and Factor Theorems - 5.5 Exercises - Mixed Review - Page 368: 58
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