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  1. Preface
  2. 1 Foundations
    1. Introduction
    2. 1.1 Introduction to Whole Numbers
    3. 1.2 Use the Language of Algebra
    4. 1.3 Add and Subtract Integers
    5. 1.4 Multiply and Divide Integers
    6. 1.5 Visualize Fractions
    7. 1.6 Add and Subtract Fractions
    8. 1.7 Decimals
    9. 1.8 The Real Numbers
    10. 1.9 Properties of Real Numbers
    11. 1.10 Systems of Measurement
    12. Key Terms
    13. Key Concepts
    14. Exercises
      1. Review Exercises
      2. Practice Test
  3. 2 Solving Linear Equations and Inequalities
    1. Introduction
    2. 2.1 Solve Equations Using the Subtraction and Addition Properties of Equality
    3. 2.2 Solve Equations using the Division and Multiplication Properties of Equality
    4. 2.3 Solve Equations with Variables and Constants on Both Sides
    5. 2.4 Use a General Strategy to Solve Linear Equations
    6. 2.5 Solve Equations with Fractions or Decimals
    7. 2.6 Solve a Formula for a Specific Variable
    8. 2.7 Solve Linear Inequalities
    9. Key Terms
    10. Key Concepts
    11. Exercises
      1. Review Exercises
      2. Practice Test
  4. 3 Math Models
    1. Introduction
    2. 3.1 Use a Problem-Solving Strategy
    3. 3.2 Solve Percent Applications
    4. 3.3 Solve Mixture Applications
    5. 3.4 Solve Geometry Applications: Triangles, Rectangles, and the Pythagorean Theorem
    6. 3.5 Solve Uniform Motion Applications
    7. 3.6 Solve Applications with Linear Inequalities
    8. Key Terms
    9. Key Concepts
    10. Exercises
      1. Review Exercises
      2. Practice Test
  5. 4 Graphs
    1. Introduction
    2. 4.1 Use the Rectangular Coordinate System
    3. 4.2 Graph Linear Equations in Two Variables
    4. 4.3 Graph with Intercepts
    5. 4.4 Understand Slope of a Line
    6. 4.5 Use the Slope-Intercept Form of an Equation of a Line
    7. 4.6 Find the Equation of a Line
    8. 4.7 Graphs of Linear Inequalities
    9. Key Terms
    10. Key Concepts
    11. Exercises
      1. Review Exercises
      2. Practice Test
  6. 5 Systems of Linear Equations
    1. Introduction
    2. 5.1 Solve Systems of Equations by Graphing
    3. 5.2 Solving Systems of Equations by Substitution
    4. 5.3 Solve Systems of Equations by Elimination
    5. 5.4 Solve Applications with Systems of Equations
    6. 5.5 Solve Mixture Applications with Systems of Equations
    7. 5.6 Graphing Systems of Linear Inequalities
    8. Key Terms
    9. Key Concepts
    10. Exercises
      1. Review Exercises
      2. Practice Test
  7. 6 Polynomials
    1. Introduction
    2. 6.1 Add and Subtract Polynomials
    3. 6.2 Use Multiplication Properties of Exponents
    4. 6.3 Multiply Polynomials
    5. 6.4 Special Products
    6. 6.5 Divide Monomials
    7. 6.6 Divide Polynomials
    8. 6.7 Integer Exponents and Scientific Notation
    9. Key Terms
    10. Key Concepts
    11. Exercises
      1. Review Exercises
      2. Practice Test
  8. 7 Factoring
    1. Introduction
    2. 7.1 Greatest Common Factor and Factor by Grouping
    3. 7.2 Factor Trinomials of the Form x2+bx+c
    4. 7.3 Factor Trinomials of the Form ax2+bx+c
    5. 7.4 Factor Special Products
    6. 7.5 General Strategy for Factoring Polynomials
    7. 7.6 Quadratic Equations
    8. Key Terms
    9. Key Concepts
    10. Exercises
      1. Review Exercises
      2. Practice Test
  9. 8 Rational Expressions and Equations
    1. Introduction
    2. 8.1 Simplify Rational Expressions
    3. 8.2 Multiply and Divide Rational Expressions
    4. 8.3 Add and Subtract Rational Expressions with a Common Denominator
    5. 8.4 Add and Subtract Rational Expressions with Unlike Denominators
    6. 8.5 Simplify Complex Rational Expressions
    7. 8.6 Solve Rational Equations
    8. 8.7 Solve Proportion and Similar Figure Applications
    9. 8.8 Solve Uniform Motion and Work Applications
    10. 8.9 Use Direct and Inverse Variation
    11. Key Terms
    12. Key Concepts
    13. Exercises
      1. Review Exercises
      2. Practice Test
  10. 9 Roots and Radicals
    1. Introduction
    2. 9.1 Simplify and Use Square Roots
    3. 9.2 Simplify Square Roots
    4. 9.3 Add and Subtract Square Roots
    5. 9.4 Multiply Square Roots
    6. 9.5 Divide Square Roots
    7. 9.6 Solve Equations with Square Roots
    8. 9.7 Higher Roots
    9. 9.8 Rational Exponents
    10. Key Terms
    11. Key Concepts
    12. Exercises
      1. Review Exercises
      2. Practice Test
  11. 10 Quadratic Equations
    1. Introduction
    2. 10.1 Solve Quadratic Equations Using the Square Root Property
    3. 10.2 Solve Quadratic Equations by Completing the Square
    4. 10.3 Solve Quadratic Equations Using the Quadratic Formula
    5. 10.4 Solve Applications Modeled by Quadratic Equations
    6. 10.5 Graphing Quadratic Equations in Two Variables
    7. Key Terms
    8. Key Concepts
    9. Exercises
      1. Review Exercises
      2. Practice Test
  12. Answer Key
    1. Chapter 1
    2. Chapter 2
    3. Chapter 3
    4. Chapter 4
    5. Chapter 5
    6. Chapter 6
    7. Chapter 7
    8. Chapter 8
    9. Chapter 9
    10. Chapter 10
  13. Index

Be Prepared

8.1

6y6y

8.2

2x13x22x13x2

8.3

n+2n22n+4n+2n22n+4

8.4

425425

8.5

499499

8.6

2x7x+72x7x+7

8.7

10n+1n2n+110n+1n2n+1

8.8

52p+qp3q52p+qp3q

8.9

y+93y+93

8.10

8x8x

8.12

5a3ab3a+b5a3ab3a+b

8.13

37303730

8.14

8x+268x+26

8.15

3xy33xy3

8.16

124n+1124n+1

8.17

2323

8.18

154154

8.19

x=1x=1

8.20

n=9,n=4n=9,n=4

8.21

y=105x2y=105x2

8.22

n=90n=90

8.23

7feet7feet

8.24

28mph28mph

8.25

x=107x=107

8.26

t=52,t=23t=52,t=23

8.27

1818

8.28

n=2.25n=2.25

8.29

500500

Try It

8.1

x=0x=0 n=13n=13 a=−1,a=−3a=−1,a=−3

8.2

q=0q=0 y=23y=23 m=2,m=−3m=2,m=−3

8.3

−2−2 2929 1313

8.4

4343 66 −1−1

8.5

1212 1313 5

8.6

2323 4545 1212

8.7

−4−4 00 4949

8.8

00 316316 316316

8.9

59.59.

8.10

7979

8.11

x3yx3y

8.12

8xy8xy

8.13

3232

8.14

7575

8.15

x+1x1x+1x1

8.16

x5x1x5x1

8.17

x+3x+2x+3x+2

8.18

x+1x7x+1x7

8.19

y2+1y+2y2+1y+2

8.20

p2+2p+5p2+2p+5

8.21

n2(n+1)n2(n+1)

8.22

x2(x+2)x2(x+2)

8.23

2(x3)3(x+3)2(x3)3(x+3)

8.24

5(y1)2(y+5)5(y1)2(y+5)

8.25

p2+4p+16p+4p2+4p+16p+4

8.26

x22x+4x2x22x+4x2

8.27

−1−1

8.28

−1−1

8.29

2y+5.2y+5.

8.30

39+y39+y

8.31

x+1x+5x+1x+5

8.32

x+2x+1x+2x+1

8.33

3434

8.34

11

8.35

5p22q5p22q

8.36

12y3712y37

8.37

x22(x+3)x22(x+3)

8.38

3(x6)x+53(x6)x+5

8.39

x+5xx+5x

8.40

x4x+3x4x+3

8.41

6(x+3)x+26(x+3)x+2

8.42

v3v3

8.43

11

8.44

1

8.45

1c31c3

8.46

12+d12+d

8.47

(m2)4(m8)(m2)4(m8)

8.48

n(n2)n1n(n2)n1

8.49

(a3)(a+5)(a5)(a5)(a3)(a+5)(a5)(a5)

8.50

(b+2)(b1)(1+b)(b+4)(b+2)(b1)(1+b)(b+4)

8.51

2(x2+2x+4)(x+2)(x22x+4)2(x2+2x+4)(x+2)(x22x+4)

8.52

2z(z2+z+1)(z+1)(z2z+1)2z(z2+z+1)(z+1)(z2z+1)

8.53

x82(x+1)x82(x+1)

8.54

y23y2(y4)y23y2(y4)

8.55

x+24x+24

8.56

2y+52y+5

8.57

2(m+1)(m+2)3(m+4)(m3)2(m+1)(m+2)3(m+4)(m3)

8.58

(n+5)(n+9)2(n+6)(2n+3)(n+5)(n+9)2(n+6)(2n+3)

8.59

3434

8.60

2525

8.61

5x+22x+3.5x+22x+3.

8.62

x+1x2x+1x2

8.63

x+2x+2

8.64

x+3x+3

8.65

x3x3

8.66

2x+52x+5

8.67

n+3n+3

8.68

y8y8

8.69

x11x2x11x2

8.70

x3x+9x3x+9

8.71

33

8.72

y+3y+3

8.73

y+3y+2y+3y+2

8.74

3n2n13n2n1

8.75

(x4)(x+4)(x+3)(x4)(x+4)(x+3)

8.76

(x+3)(x+6)(x+5)(x+3)(x+6)(x+5)

8.77

2x+8(x4)(x+3)(x+4),2x+8(x4)(x+3)(x+4),
x+3(x4)(x+3)(x+4)x+3(x4)(x+3)(x+4)

8.78

x2+6x(x+3)(x+5)(x+6),x2+6x(x+3)(x+5)(x+6),
5x+25(x+3)(x+5)(x+6)5x+25(x+3)(x+5)(x+6)

8.79

19201920

8.80

33403340

8.81

4b+25a30a2b24b+25a30a2b2

8.82

5d2+616cd25d2+616cd2

8.83

7x4(x+3)(x2)7x4(x+3)(x2)

8.84

7m+25(m+3)(m+4)7m+25(m+3)(m+4)

8.85

x(5x+7y)y(xy)(x+y)x(5x+7y)y(xy)(x+y)

8.86

7m+152(m+3)(m+1)7m+152(m+3)(m+1)

8.87

5m29m+2(m2)(m+1)(m+2)5m29m+2(m2)(m+1)(m+2)

8.88

2(n2+6n15)(n+2)(n5)(n+3)2(n2+6n15)(n+2)(n5)(n+3)

8.89

−7y+8(y+4)(y5)−7y+8(y+4)(y5)

8.90

4z+9(z+2)(z+3)4z+9(z+2)(z+3)

8.91

1x21x2

8.92

−3z3−3z3

8.93

5x+1x6x+15x+1x6x+1

8.94

y+3y+4y+3y+4

8.95

x+22x7x+22x7

8.96

−2(3y4)2y1−2(3y4)2y1

8.97

v+3v+1v+3v+1

8.98

3ww+73ww+7

8.99

23(x1)23(x1)

8.100

12(x3)12(x3)

8.101

14111411

8.102

10231023

8.103

y+xyxy+xyx

8.104

abbaabba

8.105

bb+2b53b5bb+2b53b5

8.106

3c+33c+3

8.107

7373

8.108

103103

8.109

b+aa2+b2b+aa2+b2

8.110

yxxyyxxy

8.111

3x65x+73x65x+7

8.112

x+216x43x+216x43

8.113

35x+2235x+22

8.114

6y+343y6y+343y

8.115

xx+4xx+4

8.116

x(x+1)3(x1)x(x+1)3(x1)

8.117

157157

8.118

15131513

8.119

5,−35,−3

8.120

6,−26,−2

8.121

−2−2

8.122

−2−2

8.123

2323

8.124

22

8.125

−1,−2−1,−2

8.126

−2,−3−2,−3

8.127

no solution

8.128

y=5y=5

8.129

−2−2

8.130

−3−3

8.131

33

8.132

77

8.133

no solution

8.134

no solution

8.135

L=AWL=AW

8.136

A=FMA=FM

8.137

x=3y82x=3y82

8.138

y=x1+xy=x1+x

8.139

a=bcb1a=bcb1

8.140

y=3x6+xy=3x6+x

8.141

7777

8.142

104104

8.143

6565

8.144

2424

8.145

3333

8.146

1414

8.147

4242

8.148

66

8.149

12ml12ml

8.150

180mg180mg

8.151

464calories464calories

8.152

5pieces5pieces

8.153

590.4Euros590.4Euros

8.154

56,460yen56,460yen

8.155

8

8.156

22.5

8.157

150 miles

8.158

350 miles

8.159

40 feet

8.160

60 feet

8.161

15 mph

8.162

17 mph17 mph

8.163

5 mph uphill and 10 mph downhill

8.164

50 mph50 mph

8.165

15 mph15 mph

8.166

6 mph6 mph

8.167

2hours and 24 minutes2hours and 24 minutes

8.168

2hours and 6 minutes2hours and 6 minutes

8.169

16.25 hours

8.170

12 hours

8.171

y=310xy=310x

8.172

y=3xy=3x

8.173

c=4.8tc=4.8t 432 calories

8.174

d=50td=50t 250 miles

8.175

m=55hm=55h 220 miles

8.176

w=6vw=6v 78 pounds

8.177

d=16t2d=16t2 256 feet

8.178

A=3.14r2A=3.14r2 254.34 square inches

8.179

p=360qp=360q

8.180

y=16xy=16x

8.181

v=40,000av=40,000a $8,000

8.182

t=1000rt=1000r 2 hours

8.183

h=130th=130t 123123 hours

8.184

F=48LF=48L 9.6 pounds

Section 8.1 Exercises

1.

z=0z=0 p=56p=56 n=−4,n=2n=−4,n=2

3.

y=0y=0 x=12x=12 u=−4,u=7u=−4,u=7

5.

00 44 11

7.

33 5252 1515

9.

−6−6 203203 00

11.

−1−1 310310 00

13.

00 3434 154154

15.

00 3535 71207120

17.

113113

19.

8989

21.

b2ab2a

23.

2m23n2m23n

25.

3434

27.

3535

29.

7575

31.

125125

33.

a+3a4a+3a4

35.

y+4y5y+4y5

37.

x5x3x5x3

39.

y+1y+3y+1y+3

41.

y2+1y+1y2+1y+1

43.

x2x2

45.

a(a+5)2(a+3)(a2)a(a+5)2(a+3)(a2)

47.

c2(c5)c2(c5)

49.

3(m+5)4(m5)3(m+5)4(m5)

51.

5(r1)r75(r1)r7

53.

t2+3t+9t+3t2+3t+9t+3

55.

w26w+36w6w26w+36w6

57.

−1−1

59.

−1−1

61.

2x+62x+6

63.

48+v48+v

65.

(y8)3+y(y8)3+y

67.

a+49+aa+49+a

69.

16.6%

71.

Answers will vary, but all should reference setting the denominator function to zero.

Section 8.2 Exercises

73.

310310

75.

625625

77.

x38yx38y

79.

8a43b28a43b2

81.

p(p4)2(p9)p(p4)2(p9)

83.

r+52r(r+2)r+52r(r+2)

85.

x74(x+3)x74(x+3)

87.

z+3z(z+1)z+3z(z+1)

89.

4(b+9)3(b+7)4(b+9)3(b+7)

91.

−7−7

93.

11

95.

11

97.

6tt+3t56tt+3t5

99.

110w110w

101.

3y2(y+6)(y+7)(y7)(y2+6)3y2(y+6)(y+7)(y7)(y2+6)

103.

a(a5)a6a(a5)a6

105.

(c+2)(c+2)(c2)(c3)(c+2)(c+2)(c2)(c3)

107.

(m2)(m3)(3+m)(m+4)(m2)(m3)(3+m)(m+4)

109.

3ss+43ss+4

111.

4(p2pq+q2)(pq)(p2+pq+q2)4(p2pq+q2)(pq)(p2+pq+q2)

113.

t+32t(t3)t+32t(t3)

115.

y+3z2y(2y1)y+3z2y(2y1)

117.

2a752a75

119.

3(3c5)3(3c5)

121.

4(m+8)(m+7)3(m4)(m+2)4(m+8)(m+7)3(m4)(m+2)

123.

(4p+1)(p4)3p(p+9)(p1)(4p+1)(p4)3p(p+9)(p1)

125.

w(w1)(w+m)(w+m1)w(w1)(w+m)(w+m1)
221221

127.

Answers will vary.

Section 8.3 Exercises

129.

3535

131.

3434

133.

3a+1ab3a+1ab

135.

d+5d+8d+5d+8

137.

p+8p+8

139.

r+8r+8

141.

8t8t

143.

2ww42ww4

145.

y8y8

147.

3a+73a+7

149.

c+2c+2

151.

m22m22

153.

p+3p+5p+3p+5

155.

r+9r+7r+9r+7

157.

44

159.

x+2x+2

161.

z+4z5z+4z5

163.

4b3b74b3b7

165.

32r+32r(r+4)32r+32r(r+4)

Section 8.4 Exercises

169.

(x4)(x+2)(x+3)(x4)(x+2)(x+3)

171.

(z2)(z+4)(z+2)(z2)(z+4)(z+2)

173.

(b+3)(b+3)(b5)(b+3)(b+3)(b5)

175.

(3d1)(d+5)(d6)(3d1)(d+5)(d6)

177.

5x+15(x4)(x+2)(x+3),5x+15(x4)(x+2)(x+3),
2x2+4x(x4)(x+2)(x+3)2x2+4x(x4)(x+2)(x+3)

179.

9z+18(z2)(z+4)(z+2),9z+18(z2)(z+4)(z+2),
4z2+16z(z2)(z+4)(z+2)4z2+16z(z2)(z+4)(z+2)

181.

4b20(b+3)(b+3)(b5),4b20(b+3)(b+3)(b5),
2b2+6b(b+3)(b+3)(b5)2b2+6b(b+3)(b+3)(b5)

183.

2d12(3d1)(d+5)(d6),2d12(3d1)(d+5)(d6),
5d2+25d(3d1)(d+5)(d6)5d2+25d(3d1)(d+5)(d6)

185.

37723772

187.

49604960

189.

21y+8x30x2y221y+8x30x2y2

191.

4mn+78m2n4mn+78m2n

193.

5r7(r+4)(r5)5r7(r+4)(r5)

195.

14t10(t+5)(t5)14t10(t+5)(t5)

197.

11w+1(3w2)(w+1)11w+1(3w2)(w+1)

199.

2y2+y+9(y+3)(y1)2y2+y+9(y+3)(y1)

201.

b(5b+10+2a2)a2(b2)(b+2)b(5b+10+2a2)a2(b2)(b+2)

203.

2m2+23m3(m1)(m+4)2m2+23m3(m1)(m+4)

205.

4n29n+6(n3)(n+6)(n+2)4n29n+6(n3)(n+6)(n+2)

207.

3(r2+6r+18)(r+1)(r+6)(r+3)3(r2+6r+18)(r+1)(r+6)(r+3)

209.

2(7t6)(t6)(t+6)2(7t6)(t6)(t+6)

211.

−4(1+w)(w+4)(w2)−4(1+w)(w+4)(w2)

213.

y2+2y29(y+1)(y+7)y2+2y29(y+1)(y+7)

215.

4a2+25a6(a+3)(a+6)4a2+25a6(a+3)(a+6)

217.

3c53c5

219.

−6m6−6m6

221.

p+2p+3p+2p+3

223.

3r23r2

225.

v14v+3v14v+3

227.

4(8x+1)10x14(8x+1)10x1

229.

5a2+7a36a(a2)5a2+7a36a(a2)

231.

c5c+2c5c+2

233.

3a(6ab)b(3a+b)(3ab)3a(6ab)b(3a+b)(3ab)

235.

3d+83d+8

237.

2(2m2+7m1)(m+7)(m1)(m+3)2(2m2+7m1)(m+7)(m1)(m+3)

239.

n+1n+8n+3n2n+1n+8n+3n2

241.

42q+2590pq42q+2590pq

243.

7(x+2)(x2)(x+5)7(x+2)(x2)(x+5)

245.

1q+41q+4

247.

24z+1(z5)(z+1)24z+1(z5)(z+1)

249.

3(d+1)d+23(d+1)d+2

251.

2t+3t(t+3)2t+3t(t+3) 13401340

253.

Answers may vary.

Section 8.5 Exercises

255.

a42aa42a

257.

12(c2)12(c2)

259.

12131213

261.

20572057

263.

n2+mmn2n2+mmn2

265.

rttrrttr

267.

(x+1)(x3)2(x+1)(x3)2

269.

4a+14a+1

271.

118118

273.

1919

275.

c2+ccd2c2+ccd2

277.

pqqppqqp

279.

2x103x+162x103x+16

281.

3z193z+83z193z+8

283.

43a743a7

285.

2c+295c2c+295c

287.

(2p5)5(2p5)5

289.

m(m5)4m2+m95m(m5)4m2+m95

291.

13241324

293.

2(a4)2(a4)

295.

3mnnm3mnnm

297.

(x1)(x2)6(x1)(x2)6

299.

R1R2R2+R1R1R2R2+R1 245245

301.

Answers will vary.

Section 8.6 Exercises

303.

1010

305.

4747

307.

40214021

309.

−9−9

311.

−2,4−2,4

313.

−5,−4−5,−4

315.

−6−6

317.

1414

319.

−45−45

321.

1313

323.

2,12,1

325.

−5,−1−5,−1

327.

no solutionno solution

329.

no solutionno solution

331.

−4−4

333.

−8−8

335.

22

337.

11

339.

no solutionno solution

341.

no solutionno solution

343.

r=C2πr=C2π

345.

h=vlwh=vlw

347.

w=2v+7w=2v+7

349.

c=b+3+2aac=b+3+2aa

351.

p=q4q2p=q4q2

353.

w=15v10+vw=15v10+v

355.

n=5m+234n=5m+234

357.

y=20x12xy=20x12x

359.

t=3rsrt=3rsr

361.

26112611 days

363.

Answers will vary.

Section 8.7 Exercises

365.

4949

367.

77

369.

99

371.

−11−11

373.

77

375.

0.60.6

377.

1616

379.

4040

381.

6060

383.

3030

385.

9ml9ml

387.

325mg325mg

389.

159calories159calories

391.

5oz5oz

393.

252.5Canadian dollars252.5Canadian dollars

395.

0.80Euros0.80Euros

397.

0.63British pounds0.63British pounds

399.

3cups3cups

401.

1.30Canadian dollars1.30Canadian dollars

403.

17tsp17tsp

405.

3434 cup

407.

1212

409.

77187718

411.

950 miles

413.

680 miles

415.

2323 foot (8in)(8in)

417.

247.3feet247.3feet

419.

114 beats per minute
no

421.

19 gallons
$58.71

423.

4 bags

425.

5 pounds

427.

Answers will vary.

Section 8.8 Exercises

429.

160mph160mph

431.

29 mph29 mph

433.

30 mph30 mph

435.

20 mph20 mph

437.

4 mph4 mph

439.

60 mph60 mph

441.

650 mph650 mph

443.

50 mph50 mph

445.

50mph50mph

447.

2 hours2 hours

449.

2hours and 44 minutes2hours and 44 minutes

451.

12 hours12 hours

453.

7hours and 30 minutes7hours and 30 minutes

455.

2hours and 55 minutes2hours and 55 minutes

457.

4 hours4 hours

459.

3 mph

Section 8.9 Exercises

463.

y=143xy=143x

465.

v=3wv=3w

467.

p=3.2qp=3.2q

469.

a=18ba=18b

471.

P=10nP=10n $40$40

473.

a=4.5pa=4.5p 27 apples

475.

p=3.98gp=3.98g $59.70$59.70

477.

m=8vm=8v 16 liters16 liters

479.

d=5t2d=5t2 245 feet

481.

A=3.14r2A=3.14r2 50.24sq. in.50.24sq. in.

483.

y=20xy=20x

485.

v=3wv=3w

487.

g=92,400wg=92,400w 16.8 mpg

489.

t=1000rt=1000r 2.5 hours2.5 hours

491.

L=4,400fL=4,400f 440 cycles per second

493.

t=125pt=125p 50 tickets

495.

y=53xy=53x

497.

p=30qp=30q

499.

p=5qp=5q

501.

5 pounds5 pounds

503.

3 inches3 inches

505.

15.6mpg15.6mpg

507.

267.3 feet267.3 feet

509.

c=2.5mc=2.5m $55

511.

Answers will vary.

Review Exercises

513.

a23a23

515.

y0y0

517.

5656

519.

7272

521.

512512

523.

1414

525.

c+1c+2c+1c+2

527.

75+v75+v

529.

120120

531.

3b3b

533.

6t(t+6)26t(t+6)2

535.

−111w−111w

537.

5c+45c+4

539.

11

541.

p+5p+5

543.

d7d7

545.

q2+9q+5q+1q2+9q+5q+1

547.

15w+26w115w+26w1

549.

3b2+19b16b7b+73b2+19b16b7b+7

551.

(m+2)(m5)(m+4)(m+2)(m5)(m+4)

553.

(3p+1)(p+6)(p+8)(3p+1)(p+6)(p+8)

555.

6n+12(n2)(n2)(n+2),6n+12(n2)(n2)(n+2),
2n24n(n2)(n2)(n+2)2n24n(n2)(n2)(n+2)

557.

19151915

559.

11c12(c2)(c+3)11c12(c2)(c+3)

561.

5x2+26x(x+4)(x+4)(x+6)5x2+26x(x+4)(x+4)(x+6)

563.

2(v2+10v2)(v+2)(v+8)2(v2+10v2)(v+2)(v+8)

565.

2m7m+22m7m+2

567.

4d84d8

569.

a22aa22a

571.

(x+2)(x5)2(x+2)(x5)2

573.

23q11q+45(q4)23q11q+45(q4)

575.

z521z+21z521z+21

577.

6767

579.

3232

581.

no solutionno solution

583.

l=Vhwl=Vhw

585.

z=y+5+7xxz=y+5+7xx

587.

125125

589.

1515

591.

1126calories1126calories

593.

b=9;x=213b=9;x=213

595.

23 feet

597.

45 mph45 mph

599.

16 mph16 mph

601.

45hour45hour

603.

12days12days

605.

77

607.

3636

609.

$9$9

611.

9tickets9tickets

Practice Test

613.

a2ba2b

615.

x+33xx+33x

617.

4+5qpq4+5qpq

619.

19161916

621.

14111411

623.

1212

625.

4

627.

60

629.

125mg125mg

631.

34 mph34 mph

633.

159hours159hours

635.

$74.70$74.70

637.

64 miles

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