Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Cumulative Review: 25

Answer

$a.) \ 0$ $b.) \ \dfrac{15+14x}{50x^2}$

Work Step by Step

$a.) \ \dfrac{a}{4}-\dfrac{2a}{8} = \dfrac{a}{4}-\dfrac{2a}{2(4)} = \dfrac{a}{4}-\dfrac{a}{4} = 0$ $b.) \ \dfrac{3}{10x^2}+\dfrac{7}{25x} = \dfrac{75x+70x^2}{250x^3} = \dfrac{5x(15+14x)}{5x(50x^2)} = \dfrac{15+14x}{50x^2}$
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