Beginning Algebra, 11th Edition

CHAPTER 5 Test^355

Perform each indicated operation. Write answers with only positive exponents. Assume

that all variables represent nonzero real numbers.

95. 96.

97. 98.

99. 100.

101. 102.

103. 104.

105. 106.a

x

y-^3

b

• 4
  1 - 7 + 2 k 22

3 x^3 - 2 x+ 5

x- 3

16 p^2 - p- 82 - 1 - 4 p^2 + 2 p- 32

125 x^2 y^3 - 8 xy^2 + 15 x^3 y 2 , 110 x^2 y^32

2 y^3 + 17 y^2 + 37 y+ 7

2 y+ 7

1 - 5 y^2 + 3 y- 112 + 14 y^2 - 7 y+ 152 12 r+ 5215 r- 22

12 r+ 5 s 22

r^9 #r-^5

r-^2 #r-^7

13 k- 6212 k^2 + 4 k+ 12

12 m-^5213 m^22 -^1

m-^21 m-^122

2 p^3 - 6 p^2 + 5 p

2 p^2

18 -^324

112 a+ 12112 a- 12 2 -^4

a

6 r^2 p

5

b

3

50 + 70

MIXED REVIEW EXERCISES

107.Find polynomials that represent, in

appropriate units, the (a)perimeter

and (b)area of the rectangle shown.

108.If the side of a square has a measure

represented by what poly-

nomials, in appropriate units, repre-

sent its (a)perimeter and (b)area?

5 x^4 + 2 x^2 ,

2 x – 3

x + 2

5 x^4 + 2x^2

Evaluate each expression.

4.Simplify Assume that xand yrepresent nonzero numbers.

Simplify, and write the answer using only positive exponents. Assume that all variables

represent nonzero numbers.

1 x-^32 -^21 x-^1 y 22

1 xy-^222

8 -^1 # 84

8 -^2

13 x^2 y 221 xy^322

1 xy 23

.

5 -^41 - 320 + 40 4 -^1 + 3 -^1

TEST

CHAPTER 5

View the complete solutions to
all Chapter Test exercises on
the Video Resources on DVD.

Step-by-step test solutions are found on the Chapter Test Prep Videos

available via the Video Resources on DVD, in , or on

(search “LialBeginningAlgebra”).

CHAPTER

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