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 - Test - Page 499: 15

Answer

$3x^2 -3x+1+\frac{2}{3x+2}$.

Work Step by Step

Divide the polynomial $9x^3-3x^2-3x+4$ by $3x+2$ using long division. $\begin{matrix} & 3x^2 & -3x &+1 ​& & \leftarrow &Quotient\\ &-- &-- &--&--& \\ 3x+2) &9x^3&-3x^2&-3x&+4 & \\ ​& 9x^3 & +6x^2 & & & \leftarrow &3x^2(3x+2) \\ & -- & -- & & & \leftarrow &subtract \\ & 0 & -9x^2 & -3x & & \\ & & -9x^2 & -6x & & \leftarrow & -3x(3x+2) \\ & & -- & -- & & \leftarrow & subtract \\ & & 0&3x &+4 & \\ ​& & & 3x& +2 & \leftarrow & 1(3x+2) \\ & & & -- & -- & \leftarrow & subtract \\ & & & 0 & +2 & \leftarrow & Remainder ​\end{matrix}$ The answer is $\Rightarrow Quotient + \frac{Remainder}{Divisor}$ $\Rightarrow 3x^2 -3x+1+\frac{2}{3x+2}$.
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