Math 101 Intermediate Algebra

## Chapter 5 Homework

Try to do enough problems from a section until you're
comfortable doing problems of the kind found in that section.

Should you have trouble with the problems listed here, any of the odd numbered problems around these would be good to try--the answers are in the back of the book and you have a student solutions manual that shows you how to do them.

Section 1
2, 4, 6, 8, 10, 12, 14, 18, 22, 24, 26, 28, 30, 38, 42, 46, 50, 54, 58, 62, 66, 70, 80 - 106 even

Section 2
2 - 50 even

Section 3
6, 8, 12, 16, 20, 22, 24, 30, 32, 40, 42, 46, 48, 50, 52, 54, 56, 60, 62, 64, 68, 76, 82, 84, 86, 88, 96, 100, 102, 104

Section 4
8, 10, 14 - 38 even, 42

Section 5
2 - 22 even

Section 1
2 x 58
 4 x3
4
 3y2 5
62
 1 2y4z3
6 6x4y 66
 2xy2 z
8
 4y x3z4
70
 10xz3 3y4
10 5xy5z3 80 9 × 102
12
 xyz 5
82 4.62 × 10-5
14 5 84 5.26 × 109
18 3 86 9.14 × 10-6
22
 1 16
88 40,000,000
24
 -1 16
90 0.000000964
26
 -1 125
92 46
28
 1 125
94 73,000
30
 -5 12
96 0.000064
38
 1 x
98 500,000
42
 1 x11
100 3000
46 x2 102 6.9 × 108
50
 12y3 x7
104 4.0 × 107
54 3x2y 106 8.0 × 105

Section 2
2
 1 9
28
 x4y2 9
4
 1 x15
30
 1 64x21y3
6 x2 32 125x3y3z6
8
 -1 x3
34 45x11y8
10
 3 x8
36
 4x7y6 z4
12
 16 9
38
 x2 y10
14 8 40
 4 3x3y3
16 81x8y4 42 x7y5
18
 1 25x2y6
44
 y12 16x6z16
20
 x4 9y2
46
 -8 x12y16z3
22
 3 x8y4
48
 27 128x29y15
24
 27x6y12 z3
50 768x4y8z2
26
 x3 8y3

Section 3
6 not polynomial 56 5x4 + 29x3 + 14x2 - 28x + 10
8 binomial 60 x3 - 6x2 + 12x - 8
12 4x3 - 3x2 + x - 4
third
62 x2 + 4x + 4
16 2x + 5 64 16x2 - 4y2
20 2x2 + 8x + 5 66 9x4 - 16y2
22 8y2 - 5y - 3 68 a2 - b2 - 4b - 4
24 8x2 + x + 4 76
 215 a9b5c17
30 4r2 - r 82 16x2 - 40xy + 25y2
32 5x2 - 9x - 3 84 2x3 + 10x2 + 9x - 9
40 -6x5y10 86 5x3 - x2 + 16x + 16
42 6y5 + 4y4 - 12y3 88 9w4 - 16
46 2x7y3 + 1.5x3y - 3x2y3 96 x3 + 9x2 + 27x + 27
48 x2 - y2 100 (a) x2 + 11x + 30
(b) x2 + 11x + 30
50
 x2 + 23 6 xy - 23 y2
102 50 - 2x2
52 -9x2y3 - 3xy2 + 12x2y2 + 4xy 104 (a) 29x + 23
(b) 216 in2, 77 in2
54 -14x3 - 22x2 + 19x - 3

Section 4
8 2x - 3y 26 3x3 + 6x + 4
10 3x6 - x3 + 6 28 x + 4
14 x + 2 30 2x + 4
16 x - 2 32 2x2 - x - 4
18 2r + 3 34 x + 5
20
 x2 + 2x + 3 + 1x + 1
36 x + 5
22
 3x2 - 3x + 1 + 23x + 2
38
 -x2 - 7x - 5 - 8x - 1
24
 2x2 + x - 2 - 22x - 1
42 3x3 - 8x2 - 5

Section 5
2 Quotient x - 8
Remainder 0
14 Quotient y3 + y2 + y + 1
Remainder 0
4 Quotient x + 8
Remainder 0
16 Quotient 2x3 + 6x2 + 17x + 56
Remainder 156
6 Quotient 2x + 3
Remainder 33
18 Quotient z4 + 3z3 - 3z2 + 3z - 3
Remainder -7
8 Quotient x2 + x - 1
Remainder -2
20 Quotient 8x2 - 12x + 4
Remainder 0
10 Quotient x2 - 5x - 23
Remainder -41
22 Quotient 9y2 + 3y - 3
Remainder 4
12 Quotient 3x3 + 9x2 + 2x + 6
Remainder -2