Math 101 Intermediate Algebra

## Chapter 7 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
20, 24, 30, 36, 38 (hint: factor numerator by grouping), 48, 52, 56, 58, 60, 64, 68, 72, 74, 82, 84

Section 2
4, 8, 10, 14, 18, 22, 24, 32, 36, 40, 44, 52, 54, 58, 60, 64

Section 3
2, 4, 6, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 42

Section 4
4, 6, 8, 10, 12, 16, 18, 24, 26, 30, 32, 34, 36, 38, 40, 42

Section 1
20
 x - 2y5
58
 23
24
 2x + 3x + 1
60
 x + 52
30 x 64
 x + 9x - 15
36
 a2 + ab + b2a + b
68
 3x + 1x - 1
38 x - 2 72 1
48
 20x4y6
74 (2a - 1)(a - 1)
52
 10a4
82
 -2( x + 2)x2
56
 5x5y46
84
 (x + 2)(3x + 1)(2x - 3)(x + 1)

Section 2
4 -1 36
 5x2 + 4x - 16(x - 4)(x + 1)
8 x - 5 40
 -2x - 7(x - 4)(x + 4)(2x - 3)
10
 x + 4x - 4
44
 3(x + 1)2x - 3
14 (x - 4)(x + 3) 52
 8p + 1(p + 1)(p - 1)
18 (x - 2)(x + 2)(x - 7) 54
 4x2 + 23x + 52(x + 4)2(x - 4)
22 (x - 3)(2x - 1)(2x + 3) 58
 26r2 + 13r - 43(4r - 5)(2r + 3)
24
 3x + 122x2
60
 11x - 37(x - 9)(x - 4)(2x + 1)
32
 a2b(a - b)
64
 -16r2 + 20r(2r - 1)2

Section 3
2
 35304
20 x2(x - y)
4
 67
22
 -a + 1(a + 1)(2a + 1)
6
 y - xxy
24
 x - 1x + 1
12
 x(y - 1)x + 1
26
 a2 + 12a
14
 53a2
28
 x5(x - 3)
16
 x - yy
30
 x2 + 5x - 6x(x - 2)
18
 x + 22x2 + 1
42
 (5y + x)(x - y)xy

Section 4