Get Algebra for College Students , Eighth Edition PDF

By Jerome E. Kaufmann, Karen L. Schwitters

ISBN-10: 0495105104

ISBN-13: 9780495105107

Make math a snap with ALGEBRA for students. utilizing daily language and plenty of examples, Kaufman and Schwitters provide help to follow algebra strategies and ace the try out. This quantity additionally comes with Interactive Skillbuilder CD-ROM. This application is jam-packed with over eight hours of video guideline to aid all of it make feel. Plus, you will get the strong web-based iLrn Homework software that makes your assignments a breeze. Get the grade you would like with ALGEBRA for college kids.

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Extra resources for Algebra for College Students , Eighth Edition

Example text

The sum of two positive real numbers is the sum of their absolute values. 2. The sum of two negative real numbers is the opposite of the sum of their absolute values. 3. The sum of one positive and one negative number is found as follows: a. If the positive number has the larger absolute value, then the sum is the difference of their absolute values when the smaller absolute value is subtracted from the larger absolute value. b. If the negative number has the larger absolute value, then the sum is the opposite of the difference of their absolute values when the smaller absolute value is subtracted from the larger absolute value.

Step 4 Check each solution by substituting it in the original equation and verifying that the resulting numerical statement is true.

68. Write a sentence explaining in your own words how to evaluate the expression (Ϫ8)2. Also write a sentence explaining how to evaluate Ϫ82. 69. For what natural numbers n does (Ϫ1)n ϭ Ϫ1? For what natural numbers n does (Ϫ1)n ϭ 1? Explain your answers. 70. Is the set ͕0, 1͖ closed with respect to addition? Is the set ͕0, 1͖ closed with respect to multiplication? Explain your answers. 4 Basic Concepts and Properties Algebraic Expressions Algebraic expressions such as 2x, 3xy2, 8xy, Ϫ4a2b3c, and z are called terms.

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Algebra for College Students , Eighth Edition by Jerome E. Kaufmann, Karen L. Schwitters


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