Answer
$$x^2-3x+4 -\frac{40}{x+5}.$$
Work Step by Step
By the long division of polynomials (see the attached calculations), we have $$\frac{x^3+2x^2-11x -20}{x+5}=x^2-3x+4 -\frac{40}{x+5}.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 6 - Cumulative Review - Page 265: 20
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