初一数学下册单项式乘以多项式练习题精选 20.docx
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初一数学下册单项式乘以多项式练习题精选20
4ab(5ab+5a2b2)9x(8x2+6x+2)
-3x(7x2-8y2)3ab(3a2b+7a2b2)
5
-9a(—ab-5b2)6ab(9ab-5a2b2)
6
87
(—a3b3-7a3b2)•—ab-5x(9x-7y)
78
38
(—x2y2-4x3y3)•—xy22x(3x2-6x2+6)
47
3ab(3ab+4a2b)5x(8x-7x2-8)
-5x(6x2+5y)3ab(3a2b2-5ab)
1
-9a(—a2b+5b2)7ab(9ab2-7a2b)
7
14
(—a3b3-8a2b3)•—ab-8x(7x2+3y2)
43
17
(—x2y2+3x2y2)•—xy26x(6x-5x-8)
38
9ab(5ab-8a2b2)2x(9x2+9x2-4)
-5x(9x2-6y)2ab(5a2b-4a2b2)
6
-4a(—ab2-5b)5ab(8a2b+5a2b2)
7
69
(—a2b3+9a3b3)•—ab-7x(4x2-4y2)
78
16
(—x2y3-6x3y2)•—xy2x(2x-2x+5)
55
6ab(5ab+3ab)7x(5x-7x2+4)
-3x(6x+3y)3ab(2ab+6ab)
7
-8a(—a2b2+7b)6ab(9a2b+5ab2)
8
67
(—a2b3-3a2b2)•—ab-6x(7x+6y)
56
82
(—x3y2-3x3y3)•—xy8x(4x+8x2+8)
73
7ab(7ab2+5ab)6x(2x2+8x-2)
-8x(5x2+7y)4ab(6ab+7a2b)
1
-9a(—ab2-7b2)5ab(8a2b2+6ab2)
8
53
(—a2b3-7a2b2)•—ab-7x(2x2-4y2)
64
93
(—x3y2+4x3y3)•—xy2x(2x2+2x+1)
84
2ab(4a2b2+6ab2)7x(9x+3x2-6)
-9x(4x-5y)5ab(7a2b-8a2b)
1
-5a(—a2b+4b)4ab(3a2b2-6a2b)
7
12
(—a2b3+6a3b2)•—ab-4x(8x-5y)
73
46
(—x2y2-6x3y3)•—xy29x(6x2+7x-6)
35
2ab(5a2b2-9ab)6x(8x+9x+5)
-9x(2x2+9y)4ab(7ab-4ab2)
9
-4a(—ab+2b)7ab(4ab-8ab)
8
79
(—a2b2+6a2b2)•—ab-9x(6x2-3y2)
88
96
(—x2y3+2x3y2)•—xy6x(8x2+8x-4)
85
4ab(8a2b-6ab)4x(9x2-6x2-9)
-6x(3x+3y2)9ab(4a2b2+5ab2)
6
-7a(—ab-9b)5ab(5a2b2+6ab)
5
68
(—a3b2+5a3b2)•—ab-5x(6x+9y2)
77
81
(—x2y2-3x3y3)•—xy26x(7x+3x+1)
76
5ab(7ab2+4ab)7x(5x2+2x2-4)
-7x(7x2+6y2)8ab(8a2b2+2ab2)
8
-8a(—a2b2-4b)6ab(7ab2-6ab)
7
46
(—a2b2-4a3b2)•—ab-8x(9x2+8y)
57
14
(—x3y2+7x2y3)•—xy24x(7x+6x2-3)
83
6ab(3ab2-6a2b2)5x(3x+7x2+2)
-6x(4x2+4y2)5ab(6a2b2-4ab)
6
-8a(—ab2+6b2)7ab(9ab2+2ab)
7
67
(—a2b3+7a3b2)•—ab-9x(2x2+2y)
56
41
(—x3y3+8x2y2)•—xy24x(7x-5x-8)
34
8ab(5ab+6ab2)3x(3x+4x2+1)
-6x(8x2+3y)6ab(3ab+9ab)
1
-2a(—ab2+7b2)7ab(6ab-9a2b)
6
51
(—a3b2+4a2b3)•—ab-5x(7x2-6y)
63
67
(—x3y2+4x3y3)•—xy6x(8x2-2x2-9)
78
6ab(2ab2-2a2b)7x(5x-9x-4)
-8x(4x2+3y2)3ab(4ab+7a2b2)
3
-7a(—ab+2b2)8ab(2ab-3ab2)
4
77
(—a3b3+5a2b2)•—ab-8x(3x2+2y)
88
71
(—x3y3-2x3y2)•—xy28x(4x-9x-2)
63
6ab(9ab2-6ab2)6x(8x2+3x2+5)
-7x(2x2+5y2)3ab(9a2b+3a2b)
4
-3a(—ab+5b)3ab(3ab2-2ab2)
3
31
(—a3b2+2a2b2)•—ab-5x(2x-5y)
48
76
(—x2y2+7x2y3)•—xy2x(2x+8x-2)
65
3ab(5ab+7ab)7x(8x2-2x-3)
-9x(5x+6y)4ab(9ab+5a2b2)
1
-7a(—a2b-9b2)3ab(9ab2-8a2b)
6
73
(—a2b2+8a2b3)•—ab-3x(7x2-9y)
84
59
(—x3y2-2x3y2)•—xy25x(7x+9x-1)
68
5ab(4a2b-4a2b2)4x(6x2-3x-7)
-8x(8x+8y2)8ab(5ab+7ab2)
7
-6a(—ab2+7b2)4ab(2ab2+5a2b)
6
61
(—a2b3+9a2b2)•—ab-5x(7x2-5y2)
78
18
(—x2y2-4x3y2)•—xy5x(9x2+4x2+5)
37
7ab(3ab-5ab2)8x(3x+4x2-6)
-2x(7x-7y2)7ab(6a2b+3ab)
2
-7a(—a2b2+3b2)8ab(7ab+5a2b)
3
12
(—a2b3-5a3b3)•—ab-5x(4x2+4y2)
33
51
(—x3y2-4x2y3)•—xy28x(6x2+2x+8)
46
6ab(3ab2+8ab)8x(5x2-3x-6)
-7x(7x2+8y)9ab(9a2b+8a2b2)
5
-9a(—ab2-2b)6ab(5ab2-8a2b2)
6
31
(—a2b2+4a2b2)•—ab-7x(3x2-6y)
45
71
(—x2y2+2x3y3)•—xy4x(6x+7x+8)
64
9ab(3a2b2+9a2b2)4x(5x2+7x+8)
-4x(4x+2y)5ab(6a2b-7ab2)
6
-4a(—ab+7b)8ab(4ab+4a2b2)
5
17
(—a3b3-9a2b2)•—ab-2x(5x2-2y2)
46
17
(—x2y3+7x2y3)•—xy9x(4x2+4x2-2)
48
8ab(7a2b2-3ab2)6x(6x+6x+2)
-2x(5x-4y)4ab(6ab2-6a2b2)
7
-6a(—ab2+4b2)2ab(4ab-5ab2)
8
22
(—a2b3-7a3b3)•—ab-4x(2x+8y)
33
42
(—x2y3-2x2y3)•—xy7x(4x2+6x2-6)
53