七年级数学下册计算题19Word格式文档下载.docx
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(xy-—y+—)+(xy-x+9)
33
(8y+3x-8z2)+(5y-7x-7z2)
(9k2+2k)-(2k2-2k+3)
(3a2+a+6b)+(9a2+8a-7b)
x2-(5x2+3x-7)+(2x+7)
8y2+(2x2-y)+(3x2-2y2)
(2x2+3xy-—x)+(2x2+8xy+6x)
11
(—xy+4y2-4)+(x2-—xy-3y2+3)
88
73
(xy-—y-—)+(xy+x+1)
84
(y-6x+z2)-(5y-7x-7z2)
(8k2-9k)-(2k2+8k-2)
(8a2+3a-3b)-(8a2+2a-6b)
7x2-(4x2-8x-9)+(3x+9)
5y2-(3x2-y)-(9x2+y2)
(7x2-4xy+—x)-(x2-7xy+3x)
57
(—xy-5y2+6)+(x2-—xy-7y2-4)
66
89
(xy-—y-—)+(xy+x+4)
78
(y+7x-7z2)-(4y-4x+9z2)
(4k2-8k)-(2k2+8k-3)
(6a2+8a+8b)-(6a2+9a+4b)
3x2+(8x2+2x-8)+(4x+7)
4y2-(4x2+y)-(6x2-5y2)
(9x2-8xy-—x)+(6x2-7xy+7x)
5
13
(—xy-5y2-5)+(x2+—xy-6y2-3)
74
26
(xy+—y-—)-(xy+x+4)
37
(4y-2x-7z2)+(8y-3x+7z2)
(8k2-3k)+(4k2-k-8)
(7a2+5a+3b)+(3a2-a-3b)
x2+(3x2+2x-1)+(2x+8)
3y2-(6x2-y)+(2x2+8y2)
(5x2-3xy-—x)+(5x2+3xy+3x)
(—xy-4y2+3)+(x2+—xy+4y2-2)
46
11
(xy-—y+—)+(xy+x+9)
47
(7y+4x+6z2)+(4y-4x-7z2)
(6k2-2k)-(4k2-3k-1)
(5a2-4a+7b)+(6a2-9a+7b)
6x2+(x2+3x-6)-(4x+8)
7y2+(6x2+y)-(7x2+8y2)
4
(2x2+4xy+—x)+(6x2-8xy+x)
52
(—xy-7y2-5)+(x2+—xy+4y2+3)
43
(xy-—y-—)-(xy-x+4)
(5y+7x+4z2)+(9y+2x-5z2)
(6k2-2k)-(5k2-5k-1)
(7a2+2a-4b)+(2a2-8a+4b)
6x2+(x2-3x-8)+(8x-5)
7y2-(6x2+y)-(2x2+4y2)
(8x2-5xy+—x)-(3x2+8xy-2x)
45
(—xy-4y2+9)-(x2+—xy-3y2-5)
56
41
(xy+—y-—)-(xy-x+8)
38
(6y+x-8z2)+(8y+5x-8z2)
(4k2+9k)+(7k2+5k+1)
(a2-2a-8b)-(7a2-8a+2b)
6x2-(2x2+9x-5)+(4x-9)
2y2-(6x2-y)+(8x2-9y2)
(6x2+3xy-—x)+(6x2-2xy-6x)
(—xy+y2-3)-(x2+—xy+4y2+7)
21
(xy+—y-—)-(xy+x-7)
(7y+2x-z2)-(5y+7x+8z2)
(9k2-7k)-(5k2+3k-5)
(8a2+9a-b)-(7a2+2a-2b)
6x2-(5x2+9x+4)+(5x+5)
6y2-(x2+y)-(8x2-9y2)
(4x2+8xy+—x)-(2x2+xy+x)
(—xy-y2-4)-(x2-—xy-2y2-1)
68
45
(xy-—y-—)-(xy-x-2)
54
(9y-2x-8z2)+(2y+4x+8z2)
(3k2-4k)+(8k2+9k+4)
(8a2-3a-b)+(9a2+2a+5b)
8x2+(3x2-4x-3)+(9x-8)
7y2+(9x2+y)-(8x2-9y2)
(9x2-7xy+—x)-(6x2-5xy+9x)
(—xy+3y2-9)-(x2+—xy-2y2+9)
83
(xy-—y+—)+(xy-x-5)
48
(9y-4x-2z2)-(2y-9x+7z2)
(3k2-3k)+(5k2+4k-5)
(5a2-4a+2b)-(7a2-4a+3b)
x2-(4x2+4x-1)-(6x+3)
3y2+(7x2+y)+(x2+3y2)
(5x2+9xy-—x)-(6x2+2xy-x)
14
(—xy-6y2+1)-(x2-—xy+6y2-1)
55
71
(xy+—y+—)+(xy+x+8)
68
(5y-9x-7z2)+(7y+7x-9z2)
(9k2+5k)-(3k2-6k-9)
(9a2-5a+7b)-(8a2-4a-2b)
6x2+(7x2-8x+8)-(4x-7)
9y2-(7x2-y)-(x2-7y2)
(6x2-5xy-—x)+(6x2+8xy+9x)
72
(—xy-9y2-7)+(x2-—xy+4y2-6)
63
12
(xy-—y-—)+(xy-x-6)
63
(2y-x+5z2)-(4y+4x-3z2)
(2k2-6k)+(8k2+k-3)
(8a2-3a-b)+(5a2+9a+6b)
5x2+(7x2-8x+9)-(8x-5)
4y2-(8x2+y)-(3x2+2y2)
9
(3x2-4xy+—x)-(x2+5xy+6x)
8
69
(—xy-4y2+4)-(x2+—xy+4y2-2)
78
(9y+5x-z2)+(3y+7x-8z2)
(5k2+k)+(9k2+6k+2)
(4a2-7a+7b)+(a2+2a-9b)
3x2-(8x2-3x+5)+(5x-1)
3y2+(x2+y)+(8x2-9y2)
2
(4x2+9xy-—x)+(5x2+9xy+8x)
77
(—xy+9y2-1)-(x2-—xy+6y2-6)
72
(xy-—y-—)-(xy+x-8)
(y-x+9z2)-(y+2x+4z2)
(7k2-k)+(6k2+9k-1)
(9a2+8a+6b)-(9a2-2a+3b)
2x2-(8x2-8x-9)+(3x+9)
4y2+(4x2-y)+(2x2+5y2)
(3x2+6xy+—x)-(4x2+8xy+x)
41
(—xy-5y2+2)-(x2-—xy+3y2-3)
53
(xy-—y+—)-(xy+x-4)
(7y+6x-z2)+(6y+3x-2z2)
(5k2-6k)+(k2+4k+1)
(3a2-7a-4b)-(5a2-6a+7b)
4x2-(5x2+8x-3)+(7x+8)
4y2-(7x2-y)-(5x2+4y2)
(9x2+3xy-—x)+(9x2+8xy-9x)
21
(—xy+9y2+5)+(x2+—xy+2y2+4)
37
52
(xy+—y-—)+(xy+x-6)
(8y-x-4z2)+(2y+4x+5z2)
(3k2-7k)+(7k2+k-3)
(9a2+3a-b)-(9a2-7a-9b)
9x2+(9x2-2x-4)+(2x+1)
7y2-(8x2+y)+(6x2-3y2)
(8x2-8xy+—x)-(7x2-2xy-x)
(—xy-6y2+6)-(x2-—xy+7y2-6)
58
(xy-—y+—)+(xy+x-8)
66
(9y+6x+3z2)+(9y+5x-z2)
(k2-2k)-(8k2-3k+4)
(7a2+8a-4b)+(2a2-2a+6b)
2x2-(x2+4x-4)-(6x+5)
y2+(3x2+y)+(3x2-5y2)
(3x2-8xy-—x)-(8x2+4xy-x)
(—xy+6y2+5)+(x2-—xy+9y2+4)
16
(xy-—y+—)+(xy+x-9)
57
(2y-3x+3z2)+(4y-x+7z2)
(3k2-k)+(5k2-3k-4)
(6a2-7a-6b)+(7a2+3a+3b)
6x2+(6x2+3x-1)+(3x+6)
9y2-(5x2+y)-(4x2+8y2)
(6x2-2xy-—x)-(x2+6xy+9x)
(—xy-9y2-7)+(x2-—xy-9y2+8)
(xy+—y-—)-(xy-x+6)
36
(3y-4x-4z2)-(3y-6x+9z2)
(8k2-7k)-(2k2+7k-9)
(a2+9a-9b)-(9a2+6a-6b)
5x2-(9x2+3x-3)+(x+5)
y2+(6x2-y)+(2x2+6y2)
(5x2-2xy-—x)-(5x2-2xy-8x)
17
(—xy-8y2+3)+(x2+—xy-8y2-8)
48
(xy+—y-—)+(xy-x-6)
(4y+2x+3z2)+(8y-x+5z2)
(8k2-k)-(6k2-k+7)
(7a2+a+7b)+(3a2+7a-2b)
9x2+(9x2+7x+6)-(5x-4)
4y2-(3x2+y)+(8x2+9y2)
(5x2+4xy-—x)-(x2-9xy-5x)
24
(—xy-5y2+3)-(x2-—xy-6y2+8)
35
(xy+—y-—)+(xy-x+8)
85
(4y+2x+9z2)+(y-2x+3z2)
(5k2+7k)-(7k2+8k-7)
(4a2-8a-2b)+(4a2+3a+2b)
6x2-(5x2-8x-4)+(7x+4)
6y2-(2x2-y)+(2x2+2y2)
(4x2+5xy-—x)+(6x2-6xy-9x)
(—xy+3y2-9)-(x2+—xy-y2-2)
36
(xy+—y-—)+(xy+x-2)
86
(8y+3x-4z2)+(3y-3x+7z2)
(8k2-5k)-(2k2-8k+1)
(a2-2a+5b)-(7a2-4a+7b)
3x2-(9x2+9x+8)+(x+1)
y2+(4x2-y)+(5x2-6y2)
(3x2-2xy-—x)-(x2-2xy+7x)
(—xy+7y2-3)-(x2-—xy+7y2-6)
(xy-—y+—)-(xy+x+4)
43
(3y-x-5z2)-(3y-x-3z2)
(8k2-2k)-(9k2+4k+3)
(6a2+5a+6b)-(a2-4a-8b)
9x2+(8x2-7x-7)-(8x-2)
4y2-(8x2+y)+(x2-5y2)
(4x2+3xy+—x)+(9x2+4xy+4x)
81
(—xy+6y2-1)-(x2+—xy+3y2-1)
15
(xy-—y+—)-(xy-x+5)
(5y+2x-z2)+(3y+x+4z2)