1、ALGEBRA DEMYSTIFIEDOther Titles in the McGraw-Hill Demystied SeriesAstronomy Demystied by Stan GibiliscoCalculus Demystied by Steven G. KrantzPhysics Demystied by Stan GibiliscoALGEBRA DEMYSTIFIEDRHONDA HUETTENMUELLERMcGRAW-HILLNew York Chicago San Francisco Lisbon London MadridMexico City Milan New
2、 Delhi San Juan SeoulSingapore Sydney TorontoCopyright 2003 by The McGraw-Hill Companies, Inc. All rights reserved. Manufactured in the United States of America. Except as permitted under theUnited States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form
3、 or by any means, or stored in a database orretrieval system, without the prior written permission of the publisher. 0-07-141210-7The material in this eBook also appears in the print version of this title: 0-07-138993-8 All trademarks are trademarks of their respective owners. Rather than put a trad
4、emark symbol after every occurrence of a trademarked name, we usenames in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. Where such designa-tions appear in this book, they have been printed with initial caps. McGraw-Hill eBoo
5、ks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs.For more information, please contact George Hoare, Special Sales, at george_hoaremcgraw- or (212) 904-4069. TERMS OF USEThis is a copyrighted work and The McGraw-Hill Com
6、panies, Inc. (“McGraw-Hill”) and its licensors reserve all rights in and to the work. Use of thiswork is subject to these terms. Except as permitted under the Copyright Act of 1976 and the right to store and retrieve one copy of the work, you maynot decompile, disassemble, reverse engineer, reproduc
7、e, modify, create derivative works based upon, transmit, distribute, disseminate, sell, publish orsublicense the work or any part of it without McGraw-Hills prior consent. You may use the work for your own noncommercial and personal use; anyother use of the work is strictly prohibited. Your right to
8、 use the work may be terminated if you fail to comply with these terms. THE WORK IS PROVIDED “AS IS”. McGRAW-HILL AND ITS LICENSORS MAKE NO GUARANTEES OR WARRANTIES AS TO THE ACCU-RACY, ADEQUACY OR COMPLETENESS OF OR RESULTS TO BE OBTAINED FROM USING THE WORK, INCLUDING ANY INFORMA-TION THAT CAN BE
9、ACCESSED THROUGH THE WORK VIA HYPERLINK OR OTHERWISE, AND EXPRESSLY DISCLAIM ANY WAR-RANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FORA PARTICULAR PURPOSE. McGraw-Hill and its licensors do not warrant or guarantee that the functions containe
10、d in the work will meet your require-ments or that its operation will be uninterrupted or error free. Neither McGraw-Hill nor its licensors shall be liable to you or anyone else for any inac-curacy, error or omission, regardless of cause, in the work or for any damages resulting therefrom. McGraw-Hi
11、ll has no responsibility for the contentof any information accessed through the work. Under no circumstances shall McGraw-Hill and/or its licensors be liable for any indirect, incidental, spe-cial, punitive, consequential or similar damages that result from the use of or inability to use the work, e
12、ven if any of them has been advised of the pos-sibility of such damages. This limitation of liability shall apply to any claim or cause whatsoever whether such claim or cause arises in contract, tort orotherwise.DOI: 10.1036/0071412107To all those who struggle with mathThis page intentionally left b
13、lank.viiCONTENTSPreface ixCHAPTER 1 Fractions 1CHAPTER 2Introduction to Variables 37CHAPTER 3 Decimals 55CHAPTER 4 Negative Numbers 65CHAPTER 5 Exponents and Roots 79CHAPTER 6 Factoring 113CHAPTER 7 Linear Equations 163CHAPTER 8 Linear Applications 197CHAPTER 9 Linear Inequalities 285CHAPTER 10 Quad
14、ratic Equations 319CHAPTER 11 Quadratic Applications 353Appendix 417Final Review 423Index 437For more information about this book, click here.Copyright 2003 The McGraw-Hill Companies, Inc. Click Here for Terms of Use.This page intentionally left blank.ixPREFACEThis book is designed to take the myste
15、ry out of algebra. Each section con-tains exactly one new ideaunlike most math books, which cover severalideas at once. Clear, brief explanations are followed by detailed examples.EachsectionendswithafewPracticeproblems,mostsimilartotheexamples.Solutions to the Practice problems are also given in gr
16、eat detail. The goal isto help you understand the algebra concepts while building your skills andcondence.EachchapterendswithaChapterReview,amultiple-choicetestdesignedto measure your mastery of the material. The Chapter Review could also beusedasapretest.Ifyouthinkyouunderstandthematerialinachapter
17、,takethe Chapter Review test. If you answer all of the questions correctly, thenyoucansafelyskipthatchapter.Whentakingany multiple-choicetest,workthe problems before looking at the answers. Sometimes incorrect answerslook reasonable and can throw you o. Once you have nished the book,taketheFinalRevi
18、ew,whichisa multiple-choicetestbasedonmaterialfromeach chapter.Spend as much time in each section as you need. Try not to rush, but domakeacommitmenttolearningonaschedule.Ifyoundaconceptdicult,youmightneedtoworktheproblemsandexamplesseveraltimes.Trynottojump around from section to section as most se
19、ctions extend topics fromprevious sections.Not many shortcuts are used in this book. Does that mean you shouldntusethem?No.Whatyoushoulddoistrytondtheshortcutsyourself.Onceyouhavefoundamethodthatseemstobeashortcut,trytogureoutwhyitworks. If you understand how a shortcut works, you are less likely to
20、 use itincorrectly (a common problem with algebra students).Becausemanyndfractionarithmeticdicult,therstchapterisdevotedalmost exclusively to fractions. Make sure you understand the steps in thischapterbecausetheyarethesamestepsusedinmuchoftherestofthebook.For example, the steps used to compute736516are exactly those used tocompute2xx2xC026x2.Copyright 2003 The McGraw-Hill Companies, Inc. Click Here for Terms of Use.
