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  1. Preface
  2. 1 Foundations
    1. Introduction
    2. 1.1 Use the Language of Algebra
    3. 1.2 Integers
    4. 1.3 Fractions
    5. 1.4 Decimals
    6. 1.5 Properties of Real Numbers
    7. Key Terms
    8. Key Concepts
    9. Exercises
      1. Review Exercises
      2. Practice Test
  3. 2 Solving Linear Equations
    1. Introduction
    2. 2.1 Use a General Strategy to Solve Linear Equations
    3. 2.2 Use a Problem Solving Strategy
    4. 2.3 Solve a Formula for a Specific Variable
    5. 2.4 Solve Mixture and Uniform Motion Applications
    6. 2.5 Solve Linear Inequalities
    7. 2.6 Solve Compound Inequalities
    8. 2.7 Solve Absolute Value Inequalities
    9. Key Terms
    10. Key Concepts
    11. Exercises
      1. Review Exercises
      2. Practice Test
  4. 3 Graphs and Functions
    1. Introduction
    2. 3.1 Graph Linear Equations in Two Variables
    3. 3.2 Slope of a Line
    4. 3.3 Find the Equation of a Line
    5. 3.4 Graph Linear Inequalities in Two Variables
    6. 3.5 Relations and Functions
    7. 3.6 Graphs of Functions
    8. Key Terms
    9. Key Concepts
    10. Exercises
      1. Review Exercises
      2. Practice Test
  5. 4 Systems of Linear Equations
    1. Introduction
    2. 4.1 Solve Systems of Linear Equations with Two Variables
    3. 4.2 Solve Applications with Systems of Equations
    4. 4.3 Solve Mixture Applications with Systems of Equations
    5. 4.4 Solve Systems of Equations with Three Variables
    6. 4.5 Solve Systems of Equations Using Matrices
    7. 4.6 Solve Systems of Equations Using Determinants
    8. 4.7 Graphing Systems of Linear Inequalities
    9. Key Terms
    10. Key Concepts
    11. Exercises
      1. Review Exercises
      2. Practice Test
  6. 5 Polynomials and Polynomial Functions
    1. Introduction
    2. 5.1 Add and Subtract Polynomials
    3. 5.2 Properties of Exponents and Scientific Notation
    4. 5.3 Multiply Polynomials
    5. 5.4 Dividing Polynomials
    6. Key Terms
    7. Key Concepts
    8. Exercises
      1. Review Exercises
      2. Practice Test
  7. 6 Factoring
    1. Introduction to Factoring
    2. 6.1 Greatest Common Factor and Factor by Grouping
    3. 6.2 Factor Trinomials
    4. 6.3 Factor Special Products
    5. 6.4 General Strategy for Factoring Polynomials
    6. 6.5 Polynomial Equations
    7. Key Terms
    8. Key Concepts
    9. Exercises
      1. Review Exercises
      2. Practice Test
  8. 7 Rational Expressions and Functions
    1. Introduction
    2. 7.1 Multiply and Divide Rational Expressions
    3. 7.2 Add and Subtract Rational Expressions
    4. 7.3 Simplify Complex Rational Expressions
    5. 7.4 Solve Rational Equations
    6. 7.5 Solve Applications with Rational Equations
    7. 7.6 Solve Rational Inequalities
    8. Key Terms
    9. Key Concepts
    10. Exercises
      1. Review Exercises
      2. Practice Test
  9. 8 Roots and Radicals
    1. Introduction
    2. 8.1 Simplify Expressions with Roots
    3. 8.2 Simplify Radical Expressions
    4. 8.3 Simplify Rational Exponents
    5. 8.4 Add, Subtract, and Multiply Radical Expressions
    6. 8.5 Divide Radical Expressions
    7. 8.6 Solve Radical Equations
    8. 8.7 Use Radicals in Functions
    9. 8.8 Use the Complex Number System
    10. Key Terms
    11. Key Concepts
    12. Exercises
      1. Review Exercises
      2. Practice Test
  10. 9 Quadratic Equations and Functions
    1. Introduction
    2. 9.1 Solve Quadratic Equations Using the Square Root Property
    3. 9.2 Solve Quadratic Equations by Completing the Square
    4. 9.3 Solve Quadratic Equations Using the Quadratic Formula
    5. 9.4 Solve Quadratic Equations in Quadratic Form
    6. 9.5 Solve Applications of Quadratic Equations
    7. 9.6 Graph Quadratic Functions Using Properties
    8. 9.7 Graph Quadratic Functions Using Transformations
    9. 9.8 Solve Quadratic Inequalities
    10. Key Terms
    11. Key Concepts
    12. Exercises
      1. Review Exercises
      2. Practice Test
  11. 10 Exponential and Logarithmic Functions
    1. Introduction
    2. 10.1 Finding Composite and Inverse Functions
    3. 10.2 Evaluate and Graph Exponential Functions
    4. 10.3 Evaluate and Graph Logarithmic Functions
    5. 10.4 Use the Properties of Logarithms
    6. 10.5 Solve Exponential and Logarithmic Equations
    7. Key Terms
    8. Key Concepts
    9. Exercises
      1. Review Exercises
      2. Practice Test
  12. 11 Conics
    1. Introduction
    2. 11.1 Distance and Midpoint Formulas; Circles
    3. 11.2 Parabolas
    4. 11.3 Ellipses
    5. 11.4 Hyperbolas
    6. 11.5 Solve Systems of Nonlinear Equations
    7. Key Terms
    8. Key Concepts
    9. Exercises
      1. Review Exercises
      2. Practice Test
  13. 12 Sequences, Series and Binomial Theorem
    1. Introduction
    2. 12.1 Sequences
    3. 12.2 Arithmetic Sequences
    4. 12.3 Geometric Sequences and Series
    5. 12.4 Binomial Theorem
    6. Key Terms
    7. Key Concepts
    8. Exercises
      1. Review Exercises
      2. Practice Test
  14. 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
    11. Chapter 11
    12. Chapter 12
  15. Index

Be Prepared

7.1

6y6y

7.2

425425

7.3

154154

7.4

37303730

7.5

27x323627x3236

7.6

8x+268x+26

7.7

2323

7.8

154154

7.9

x=14x=14

7.10

x=−1x=−1

7.11

n=9,n=−4n=9,n=−4

7.12

y=105x2y=105x2

7.13

n=90n=90

7.14

The speed of the bus is 28 mph.

7.15

x=107x=107

7.16

1; −8; 0

7.17

x>−2x>−2

7.18

[−3,5)[−3,5)

Try It

7.1

x=0x=0 n=13n=13
a=−1,a=−3a=−1,a=−3

7.2

q=0q=0 y=23y=23
m=2,m=−3m=2,m=−3

7.3

x+1x1,x+1x1,x2,x2,x1x1

7.4

x5x1,x5x1,x2,x2,x1x1

7.5

2(x3y)3(x+3y)2(x3y)3(x+3y)

7.6

5(xy)2(x+5y)5(xy)2(x+5y)

7.7

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

7.8

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

7.9

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

7.10

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

7.11

x4x5x4x5

7.12

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

7.13

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

7.14

2zz12zz1

7.15

x+24x+24

7.16

2y+52y+5

7.17

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

7.18

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

7.19

The domain of R(x)R(x) is all real numbers where x5x5 and x1.x1.

7.20

The domain of R(x)R(x) is all real numbers where x4x4 and x2.x2.

7.21

R(x)=2R(x)=2

7.22

R(x)=13R(x)=13

7.23

R(x)=x24(x8)R(x)=x24(x8)

7.24

R(x)=x(x2)x1R(x)=x(x2)x1

7.25

x+2x+2

7.26

x+3x+3

7.27

x11x2x11x2

7.28

x3x+9x3x+9

7.29

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

7.30

3n2n13n2n1

7.31

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

7.32

(x+2)(x5)(x+1)(x+2)(x5)(x+1)
3x2+3x(x+2)(x5)(x+1)3x2+3x(x+2)(x5)(x+1),
5x25(x+2)(x5)(x+1)5x25(x+2)(x5)(x+1)

7.33

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

7.34

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

7.35

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

7.36

2n2+12n30(n+2)(n5)(n+3)2n2+12n30(n+2)(n5)(n+3)

7.37

1x21x2

7.38

−3z3−3z3

7.39

5x+1(x6)(x+1)5x+1(x6)(x+1)

7.40

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

7.41

1(b+1)(b1)1(b+1)(b1)

7.42

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

7.43

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

7.44

3ww+73ww+7

7.45

x7x4x7x4

7.46

x23x+18(x+3)(x3)x23x+18(x+3)(x3)

7.47

23(x1)23(x1)

7.48

12(x3)12(x3)

7.49

14111411

7.50

10231023

7.51

y+xyxy+xyx

7.52

abbaabba

7.53

b(b+2)(b5)3b5b(b+2)(b5)3b5

7.54

3c+33c+3

7.55

7373

7.56

103103

7.57

b+aa2+b2b+aa2+b2

7.58

yxxyyxxy

7.59

3(x2)5x+73(x2)5x+7

7.60

x+216x43x+216x43

7.61

35x+2235x+22

7.62

2(2y2+13y+5)3y2(2y2+13y+5)3y

7.63

xx+4xx+4

7.64

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

7.65

y=157y=157

7.66

x=1513x=1513

7.67

x=−3,x=5x=−3,x=5

7.68

y=−2,y=6y=−2,y=6

7.69

x=23x=23

7.70

y=2y=2

7.71

There is no solution.

7.72

There is no solution.

7.73

x=3x=3

7.74

y=7y=7

7.75

There is no solution.

7.76

There is no solution.

7.77

There is no solution.

7.78

There is no solution.

7.79

The domain is all real numbers except x3x3 and x4.x4. x=2,x=143x=2,x=143
(2,3),(143,3)(2,3),(143,3)

7.80

The domain is all real numbers except x1x1 and x5.x5. x=214x=214 (214,4)(214,4)

7.81

y=mx4m+5y=mx4m+5

7.82

y=mx+5m+1y=mx+5m+1

7.83

a=bcb1a=bcb1

7.84

y=3xx+6y=3xx+6

7.85

y=33y=33

7.86

z=14z=14

7.87

The pediatrician will prescribe 12 ml of acetaminophen to Emilia.

7.88

The pediatrician will prescribe 180 mg of fever reducer to Isabella.

7.89

The distance is 150 miles.

7.90

The distance is 350 miles.

7.91

The telephone pole is 40 feet tall.

7.92

The pine tree is 60 feet tall.

7.93

Link’s biking speed is 15 mph.

7.94

The speed of Danica’s boat is 17 mph.

7.95

Dennis’s uphill speed was 5 mph and his downhill speed was 10 mph.

7.96

Joon’s rate on the country roads was 50 mph.

7.97

Kayla’s biking speed was 15 mph.

7.98

Victoria jogged 6 mph on the flat trail.

7.99

When the two gardeners work together it takes 2 hours and 24 minutes.

7.100

When Daria and her mother work together it takes 2 hours and 6 minutes.

7.101

Kristina can paint the room in 12 hours.

7.102

It will take Jordan 6 hours.

7.103

c=4.8tc=4.8t He would burn 432 calories.

7.104

d=50td=50t It would travel 250 miles.

7.105

h=130th=130t 123123 hours

7.106

x=3500px=3500p 500 units

7.107

(,−4)[2,)(,−4)[2,)

7.108

(,−2](4,)(,−2](4,)

7.109

(32,3)(32,3)

7.110

(−8,4)(−8,4)

7.111

(,−4)(2,)(,−4)(2,)

7.112

(,−4)(3,)(,−4)(3,)

7.113

(2,4)(2,4)

7.114

(3,6)(3,6)

7.115

(−4,2](−4,2]

7.116

[−1,4)[−1,4)

7.117

c(x)=20x+6000xc(x)=20x+6000x
More than 150 items must be produced to keep the average cost below $60 per item.

7.118

c(x)=5x+900xc(x)=5x+900x More than 60 items must be produced to keep the average cost below $20 per item.

Section 7.1 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.

4545

7.

2m23n2m23n

9.

8383

11.

x+5x1x+5x1

13.

a+2a+8a+2a+8

15.

p2+4p2p2+4p2

17.

4b(b4)(b+5)(b8)4b(b4)(b+5)(b8)

19.

3(m+5n)4(m5n)3(m+5n)4(m5n)

21.

−1−1

23.

5y+45y+4

25.

w26w+36w6w26w+36w6

27.

z54+zz54+z

29.

310310

31.

x38yx38y

33.

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

35.

y53(y+5)y53(y+5)

37.

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

39.

(3c1)(c+5)(3c+1)(c5)(3c1)(c+5)(3c+1)(c5)

41.

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

43.

1v+51v+5

45.

3ss+43ss+4

47.

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

49.

x28x(x+5)x28x(x+5)

51.

2a752a75

53.

3(3c5)3(3c5)

55.

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

57.

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

59.

x5x5 and x5x5

61.

x2x2 and x3x3

63.

R(x)=2R(x)=2

65.

R(x)=x+52x(x+2)R(x)=x+52x(x+2)

67.

R(x)=3x(x+7)x7R(x)=3x(x+7)x7

69.

R(x)=x(x5)x6R(x)=x(x5)x6

71.

Answers will vary.

73.

Answers will vary.

Section 7.2 Exercises

75.

3535

77.

3c+54c53c+54c5

79.

r+8r+8

81.

2ww42ww4

83.

3a+73a+7

85.

m22m22

87.

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

89.

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

91.

44

93.

x+2x+2

95.

z+4z5z+4z5

97.

4b3b74b3b7

99.

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

101.

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

103.

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

105.

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

107.

21y+8x30x2y221y+8x30x2y2

109.

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

111.

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

113.

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

115.

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

117.

mm+4mm+4

119.

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

121.

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

123.

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

125.

−6m6−6m6

127.

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

129.

3r23r2

131.

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

133.

x5(x4)(x+1)(x1)x5(x4)(x+1)(x1)

135.

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

137.

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

139.

c5c+2c5c+2

141.

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

143.

R(x)=(x+8)(x+1)(x2)(x+3)R(x)=(x+8)(x+1)(x2)(x+3) R(x)=x+1x+3R(x)=x+1x+3

145.

3(3x+8)(x8)(x+8)3(3x+8)(x8)(x+8)
R(x)=3x+8R(x)=3x+8

147.

Answers will vary.

149.

Answers will vary.
Answers will vary.
Answers will vary.
x+yxyx+yxy

Section 7.3 Exercises

151.

a42aa42a

153.

12(c2)12(c2)

155.

12131213

157.

20572057

159.

n2+mmn2n2+mmn2

161.

rttrrttr

163.

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

165.

4a+14a+1

167.

118118

169.

1919

171.

c2+ccd2c2+ccd2

173.

pqqppqqp

175.

2x103x+162x103x+16

177.

3z193z+83z193z+8

179.

43a743a7

181.

2c+295c2c+295c

183.

2p552p55

185.

m(m5)(4m19)(m+5)m(m5)(4m19)(m+5)

187.

13241324

189.

2(a4)2(a4)

191.

3mnnm3mnnm

193.

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

195.

Answers will vary.

Section 7.4 Exercises

197.

a=10a=10

199.

v=4021v=4021

201.

m=−2,m=4m=−2,m=4

203.

p=−5,p=−4p=−5,p=−4

205.

v=14v=14

207.

x=45x=45

209.

z=−145z=−145

211.

q=−18,q=−1q=−18,q=−1

213.

no solutionno solution

215.

no solutionno solution

217.

b=−8b=−8

219.

d=2d=2

221.

n=1n=1

223.

no solutionno solution

225.

s=54s=54

227.

x=43x=43

229.

no solution

231.

> The domain is all real numbers except x2x2 and x4.x4. x=−3,x=145x=−3,x=145 (−3,5),(145,5)(−3,5),(145,5)

233.

The domain is all real numbers except x2x2 and x5.x5. x=92,x=92, (92,2)(92,2)

235.

r=C2πr=C2π

237.

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

239.

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

241.

p=q4q2p=q4q2

243.

w=15v10+vw=15v10+v

245.

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

247.

c=Em2c=Em2

249.

y=20x12xy=20x12x

251.

Answers will vary.

Section 7.5 Exercises

253.

x=49x=49

255.

p=−11p=−11

257.

a=16a=16

259.

m=60m=60

261.

p=30p=30

263.

162 beats per minute yes

265.

99 ml

267.

159159 calories

269.

325325 Canadian dollars

271.

33 cups

273.

4 bags

275.

6 1212

277.

950 miles

279.

680 miles

281.

2323 foot (88 in.)

283.

247.3247.3 feet

285.

160160 mph

287.

2929 mph

289.

3030 mph

291.

2020 mph

293.

44 mph

295.

6060 mph

297.

650650 mph

299.

5050 mph

301.

5050 mph

303.

3 mph

305.

22 hours

307.

22 hours and 4444 minutes

309.

77 hours and 3030 minutes

311.

1010 min

313.

y=143xy=143x

315.

p=3.2qp=3.2q

317.

P=2.5gP=2.5g $82.50$82.50

319.

m=8vm=8v 1616 liters

321.

L=3d2L=3d2 300300 pounds

323.

y=20xy=20x

325.

v=3wv=3w

327.

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

329.

t=1000rt=1000r 2.52.5 hours

331.

c=2tc=2t 11 cavity

333.

c=2.5mc=2.5m $55

335.

Answers will vary.

337.

Answers will vary.

Section 7.6 Exercises

339.

(,−4)[3,)(,−4)[3,)

341.

[−1,3)[−1,3)

343.

(,1)(7,)(,1)(7,)

345.

(−5,6)(−5,6)

347.

(52,5)(52,5)

349.

(,−3)(6,)(,−3)(6,)

351.

[−9,6)[−9,6)

353.

(,−6](4,)(,−6](4,)

355.

(,−4)(−3,)(,−4)(−3,)

357.

(1,4)(1,4)

359.

(,−3)(52,)(,−3)(52,)

361.

(,23)(32,)(,23)(32,)

363.

(,0)(0,4)(6,)(,0)(0,4)(6,)

365.

[−2,0)(0,4][−2,0)(0,4]

367.

(−4,4)(−4,4)

369.

[−10,−1)(2,)[−10,−1)(2,)

371.

(2,5](2,5]

373.

(−2,6](−2,6]

375.

Answers will vary.

Review Exercises

377.

a23a23

379.

y0y0

381.

3434

383.

x+3x+4x+3x+4

385.

1616

387.

−3x2−3x2

389.

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

391.

111w111w

393.

5c+45c+4

395.

R(x)=3R(x)=3

397.

11

399.

y+5y+5

401.

x+4x+4

403.

q2+9(q+5)(q+1)q2+9(q+5)(q+1)

405.

15w+26w115w+26w1

407.

3b2+19b16b2493b2+19b16b249

409.

(a+2)(a5)(a+4)(a+2)(a5)(a+4)

411.

(3p1)(p+6)(p+8)(3p1)(p+6)(p+8)

413.

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

415.

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

417.

2(y2+10y2)(y+2)(y+8)2(y2+10y2)(y+2)(y+8)

419.

2m7m+22m7m+2

421.

4a84a8

423.

R(x)=x+8x+5R(x)=x+8x+5

425.

R(x)=2x+11R(x)=2x+11

427.

x22xx22x

429.

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

431.

118118

433.

z521z+21z521z+21

435.

x=67x=67

437.

b=32b=32

439.

no solution

441.

The domain is all real numbers except x2x2 and x4.x4. x=1,x=6x=1,x=6
(1,1),(6,1)(1,1),(6,1)

443.

l=Vhwl=Vhw

445.

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

447.

x=125x=125

449.

s=15s=15

451.

11261126 calories

453.

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

455.

23 feet

457.

4545 mph

459.

1616 mph

461.

4848 minutes

463.

1212 days

465.

x=7x=7

467.

301301 mph

469.

288288 feet

471.

99 tickets

473.

(−4,3](−4,3]

475.

[−6,4)[−6,4)

477.

(,−2][4,)(,−2][4,)

479.

(,2)[5,)(,2)[5,)

481.


c(x)=150x+100000xc(x)=150x+100000x
More than 10,000 items must be produced to keep the average cost below $160$160 per item.

Practice Test

483.

a3ba3b

485.

x+33xx+33x

487.

x3x+9x3x+9

489.

3n2n13n2n1

491.

nmm+nnmm+n

493.

z=12z=12

495.

[−3,6)[−3,6)

497.

(,0)(0,4][6,)(,0)(0,4][6,)

499.

R(x)=1(x+2)(x+2)R(x)=1(x+2)(x+2)

501.

(−3,52)(−3,52)

503.

y=8116y=8116

505.

Oliver’s dad would take 445445 hours to split the logs himself.

507.

The distance between Dayton and Columbus is 64 miles.

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