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 6.4 - Division of Polynomials - Exercise Set - Page 444: 19

Answer

$x+5-\displaystyle \frac{10}{2x+3}$

Work Step by Step

$\begin{array}{ccccccccccc} & &x & +5 & & \\ & &--&--&--& \\ 2x+3&) & 2x^{2} & +13x& +5 & \\ & & 2x^{2} & +3x& & \color{red}{\leftarrow \small{x(2x+3) } } \\ & &--&-- & & \color{red}{ \small{subtract}} \\ & & & 10x& +5 & \\ & & & 10x & +15& \color{red}{\leftarrow \small{5(2x+3) } }\\ & & &--&-- & \color{red}{ \small{subtract}} \\ & & & & -10 &\\ \end{array}$ Quotient = $x+5$ Remainder = $-10$. $\displaystyle \frac{dividend}{divisor}=quotient+\frac{remainder}{divisor}$ $\displaystyle \frac{ 2x^{2} +13x +5}{2x+3}$ = $x+5-\displaystyle \frac{10}{2x+3}$
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