By Jerome E. Kaufmann, Karen L. Schwitters

ISBN-10: 0538733543

ISBN-13: 9780538733540

Kaufmann and Schwitters have equipped this text's popularity on transparent and concise exposition, a number of examples, and abundant challenge units. This conventional textual content continually reinforces the next universal thread: examine a ability; perform the ability to assist clear up equations; after which practice what you could have realized to unravel program difficulties. this straightforward, easy procedure has helped many scholars seize and practice basic challenge fixing talents precious for destiny arithmetic classes. Algebraic principles are constructed in a logical series, and in an easy-to-read demeanour, with out over the top vocabulary and formalism. The open and uncluttered layout is helping maintain scholars concerned with the strategies whereas minimizing distractions. difficulties and examples reference a vast variety of issues, in addition to profession parts akin to electronics, mechanics, and healthiness, displaying scholars that arithmetic is a part of daily life. The text's source package--anchored by means of greater WebAssign, a web homework administration tool--saves teachers time whereas additionally supplying extra aid and skill-building perform for college students open air of sophistication.

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**Sample text**

2(Ϫ1)3 Ϫ 3(Ϫ1)2 ϩ 4(Ϫ1) Ϫ 5 48. 4 • Algebraic Expressions 49. 24 Ϫ 2(2)3 Ϫ 3(2)2 ϩ 7(2) Ϫ 10 27 55. Use your calculator to check your answers for Problems 27– 52. 50. 3(Ϫ3)3 ϩ 4(Ϫ3)2 Ϫ 5(Ϫ3) ϩ 7 1 4 1 3 1 2 1 51. 3a b Ϫ 2a b ϩ 5a b Ϫ 4a b ϩ 1 2 2 2 2 For Problems 56–64, use your calculator to evaluate each numerical expression. (Objective 3) 52. 7 56. 210 57. 37 58. (Ϫ2)8 59. (Ϫ2)11 60. Ϫ49 61. Ϫ56 62. 14)3 63. 41)4 2 2 2 53. Ϫa b ϩ 5a b Ϫ 4 3 3 1 3 1 2 1 54. 4a b ϩ 3a b ϩ 2a b ϩ 6 3 3 3 64. 73)5 Thoughts Into Words 69.

2(n2 Ϫ 4) Ϫ 4(2n2 ϩ 1) 28. Ϫ4(n2 ϩ 3) Ϫ (2n2 Ϫ 7) 29. 3(2x Ϫ 4y) Ϫ 2(x ϩ 9y) 30. Ϫ7(2x Ϫ 3y) ϩ 9(3x ϩ y) xϭ4 x ϭ Ϫ1 1 54. Ϫ3(x ϩ 1) ϩ 4(Ϫx Ϫ 2) Ϫ 3(Ϫx ϩ 4), x ϭ Ϫ 2 55. 3(x 2 Ϫ 1) Ϫ 4(x 2 ϩ 1) Ϫ (2x 2 Ϫ 1), 2 xϭ 3 56. 2(n2 ϩ 1) Ϫ 3(n2 Ϫ 3) ϩ 3(5n2 Ϫ 2), n ϭ 57. 5(x Ϫ 2y) Ϫ 3(2x ϩ y) Ϫ 2(x Ϫ y), x ϭ 1 4 1 3 and y ϭ Ϫ 3 4 32. Ϫ2(x Ϫ 1) Ϫ 5(2x ϩ 1) ϩ 4(2x Ϫ 7) For Problems 58– 63, use your calculator and evaluate each of the algebraic expressions for the indicated values. Express the final answers to the nearest tenth.

The statement 0 6 Ϫ 4 0 ϭ 0 4 Ϫ 6 0 is a true statement. The absolute value of every real number is a positive real number. The absolute value of zero does not exist. The sum of a positive number plus a negative number is always a negative number. Every subtraction problem can be changed to an equivalent addition problem. 2 1. Graph the following points and their opposites on the real number line: 1, Ϫ2, and 4. 2. Graph the following points and their opposites on the real number line: Ϫ3, Ϫ1, and 5.

### Algebra for College Students (9th Edition) by Jerome E. Kaufmann, Karen L. Schwitters

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