Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.2 - Operations with Real Numbers and Simplifying Algebraic Expressions - Exercise Set - Page 28: 130



Work Step by Step

Use the distributive property to find: $=14x^2+5-[7x^2-14+4] \\=14x^2+5-(7x^2-10) \\=14x^2+5-7x^2-(-10) \\=14x^2+5-7x^2+10$ Rearrange and regroup the terms, and then simplify using the distributive property to find: $=(14x^2-7x^2)+(5+10) \\=(14-7)x^2+15 \\=7x^2+15$
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