Answer
$-9$.
Work Step by Step
Use synthetic division as shown, we can identify $a=1, b=-4, c=11, d=-17$ and $a+b+c+d=-9$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.5 Synthetic Division - A.5 Assess Your Understanding - Page A44: 27
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