Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 3 - Section 3.1 - Simplifying Algebraic Expressions - Exercise Set - Page 172: 108


$12(3x-5)+4(5x-1)$ $area\ is\ (56x-64)\ km^2$

Work Step by Step

The area of the composite figure is the sum of the areas of the two triangles. $12(3x-5)+4(5x-1)=36x-60+20x-4=56x-64$
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