Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 6 - Section 6.5 - Synthetic Division and the Remainder Theorem - Exercise Set - Page 453: 19

Answer

$f(4)=-25$

Work Step by Step

The remainder theorem: If the polynomial f(x) is divided by $x-c$, then the remainder is $f(c).$ Divide $2x^{3}-11x^{2}+7x-5$ with $x-4,\qquad (c=4)$ $\begin{array}{rrrrrrrr} \underline{4}| &2 & -11 & 7 & -5 & & & & \\ & & 8 & -12 & -20 & & & & \\ & --& -- &-- &-- & & & & \\ &2 & -3 & -5 & -25 & & & & \end{array}$ Quotient = $ 2x^{2}-3x-5$ Remainder = $f(4)=-25$
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