Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 11 - Rational Expressions and Functions - 11-3 Dividing Polynomials - Lesson Check - Page 681: 4


The answer is $3a-5$.

Work Step by Step

$(-16a-15+15a^2) \div (3+5a)$ $=(15a^2-16a-15) \div (5a+3)$ $3a-5$ _________________________ $5a+3)15a^2-16a-15$ $15a^2+9a$ _________________________ $-25a-15 $ $-25a-15 $ _________________________ $0$ The answer is $3a-5$.
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