七年级数学下册计算题12.docx
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七年级数学下册计算题12
(9k2+2k)-(9k2+9k+3)
(2a2-5a-9b)+(3a2+7a+3b)
x2+(x2+4x+7)-(x-6)
3y2-(4x2-y)+(9x2-5y2)
7
(4x2+xy+—x)+(8x2+8xy-5x)
8
17
(—xy+7y2-5)+(x2-—xy+3y2+7)
76
56
(xy-—y+—)+(xy-x+3)
47
(6y-5x-3z2)-(4y+7x-z2)
(4k2+2k)-(7k2+3k+1)
(a2-8a-b)+(a2+3a+7b)
8x2-(2x2-6x+1)+(3x-9)
6y2+(x2-y)+(x2-7y2)
6
(9x2-8xy-—x)-(2x2-5xy-6x)
5
21
(—xy-9y2-9)-(x2-—xy-y2-8)
35
16
(xy+—y+—)-(xy+x-1)
67
(4y-9x+9z2)+(6y+2x-3z2)
(3k2+8k)-(9k2+8k+2)
(9a2+9a+7b)+(a2-4a+3b)
8x2+(5x2+5x+3)+(x-6)
7y2-(7x2-y)-(8x2+4y2)
1
(6x2-2xy-—x)+(3x2+8xy-3x)
7
41
(—xy-4y2-7)+(x2+—xy-6y2+4)
36
56
(xy-—y+—)+(xy+x+4)
65
(6y-6x+6z2)-(4y+2x-6z2)
(3k2-4k)+(3k2+k+6)
(9a2+3a-4b)+(4a2+3a-6b)
2x2+(4x2+2x+1)-(8x+6)
8y2-(3x2+y)-(2x2-9y2)
1
(2x2-4xy-—x)+(5x2+4xy-5x)
4
41
(—xy-8y2+1)+(x2+—xy+4y2-4)
33
22
(xy+—y+—)+(xy+x-3)
33
(9y-7x-5z2)-(4y-4x-5z2)
(6k2-3k)+(7k2+3k-5)
(4a2-a+2b)-(4a2+5a-4b)
4x2-(2x2+6x-5)-(9x-8)
y2-(7x2+y)-(4x2-y2)
5
(9x2+7xy-—x)-(9x2+5xy+7x)
6
34
(—xy-5y2+2)-(x2+—xy-2y2-4)
45
11
(xy-—y+—)+(xy-x+6)
53
(6y-x-8z2)-(8y+3x+5z2)
(k2+9k)+(7k2+9k-3)
(7a2-2a-4b)+(5a2-5a-7b)
8x2-(x2+2x+9)-(6x+8)
y2+(4x2-y)-(2x2+6y2)
7
(4x2-5xy+—x)-(6x2+7xy+7x)
6
71
(—xy-3y2+8)-(x2-—xy-7y2-6)
88
68
(xy+—y+—)+(xy+x+3)
57
(8y+2x-8z2)-(3y-x+3z2)
(2k2-5k)-(5k2-6k-4)
(5a2-a-8b)+(3a2-2a-7b)
3x2-(8x2-3x-5)-(2x+7)
3y2+(3x2+y)+(6x2-9y2)
4
(6x2+5xy+—x)-(5x2+7xy+x)
3
16
(—xy-7y2-3)+(x2-—xy+5y2-7)
85
28
(xy-—y+—)-(xy+x+3)
37
(6y+4x+5z2)+(9y-6x-7z2)
(8k2+6k)-(k2-9k-7)
(8a2+4a-5b)+(6a2-a-9b)
7x2+(9x2-5x+7)-(8x-4)
5y2-(6x2+y)-(2x2+y2)
4
(4x2-7xy-—x)+(9x2+4xy-2x)
5
13
(—xy+6y2+1)+(x2+—xy+5y2+1)
54
67
(xy+—y+—)-(xy+x+8)
76
(8y+2x+6z2)-(y-8x-6z2)
(9k2-2k)+(6k2-4k+2)
(a2-3a-3b)+(a2-5a+8b)
6x2+(8x2+7x+6)+(8x+2)
5y2-(8x2+y)-(7x2+7y2)
1
(7x2+5xy-—x)+(4x2+7xy-6x)
8
19
(—xy+6y2-4)-(x2-—xy-4y2+2)
48
11
(xy+—y-—)+(xy-x-2)
83
(7y+8x-8z2)-(8y-4x+3z2)
(k2-2k)-(9k2+3k-2)
(2a2+2a+4b)-(4a2+6a+4b)
2x2-(2x2+8x+9)-(x-1)
2y2-(5x2+y)-(3x2-2y2)
9
(x2+7xy-—x)+(x2+3xy+8x)
8
91
(—xy-y2-8)-(x2+—xy-2y2+9)
83
16
(xy+—y+—)-(xy+x+1)
77
(8y+5x+2z2)+(8y+3x+4z2)
(7k2-9k)-(4k2-8k-3)
(8a2-8a+7b)-(3a2+3a-3b)
6x2-(4x2+5x-9)+(9x+4)
6y2-(3x2-y)-(4x2-8y2)
1
(8x2+6xy+—x)-(6x2+5xy+5x)
6
11
(—xy+7y2-3)-(x2-—xy-7y2-3)
54
51
(xy-—y+—)-(xy-x-3)
48
(5y+9x+6z2)+(9y-2x-3z2)
(2k2-2k)-(6k2+7k+6)
(6a2+8a-9b)-(6a2+2a+b)
8x2-(x2-8x-8)-(8x-4)
9y2+(6x2-y)+(5x2-4y2)
6
(3x2-2xy+—x)-(3x2+7xy-8x)
5
11
(—xy+5y2-6)+(x2-—xy-y2+8)
77
11
(xy+—y-—)+(xy+x+2)
57
(3y-3x-z2)-(9y-x+z2)
(4k2+5k)-(8k2+4k-1)
(9a2+4a+7b)+(5a2+2a-4b)
8x2-(5x2-3x-7)-(7x+1)
3y2-(2x2+y)-(9x2+y2)
7
(3x2-xy+—x)-(4x2+9xy-7x)
8
11
(—xy-9y2+4)+(x2+—xy+8y2+1)
34
11
(xy-—y+—)+(xy+x-4)
74
(5y-6x-3z2)+(4y-3x-9z2)
(6k2-2k)-(k2+7k-2)
(2a2-a+b)-(7a2+8a-5b)
9x2+(5x2-6x+4)+(3x+5)
4y2-(7x2+y)+(3x2+4y2)
1
(7x2-6xy+—x)+(7x2-2xy+7x)
5
61
(—xy+y2+7)-(x2-—xy-y2+8)
54
17
(xy-—y-—)-(xy-x-3)
76
(7y-2x+z2)-(7y+5x+3z2)
(k2-k)+(2k2-9k-1)
(5a2+a+b)+(4a2+a+b)
x2+(4x2-7x-8)+(7x+8)
6y2+(x2+y)+(9x2+7y2)
7
(6x2-6xy-—x)+(2x2-9xy-9x)
8
15
(—xy-y2+3)+(x2+—xy-6y2+1)
46
41
(xy-—y+—)+(xy-x-4)
35
(9y+8x-z2)+(7y-5x-3z2)
(3k2-6k)+(4k2-8k+7)
(3a2-2a+9b)+(9a2+6a-4b)
2x2+(x2-5x+4)+(6x-8)
y2+(8x2-y)+(9x2-7y2)
1
(5x2+4xy-—x)+(7x2-8xy-7x)
6
55
(—xy-7y2+1)-(x2+—xy+6y2+6)
44
62
(xy-—y-—)+(xy+x-7)
53
(8y+7x-9z2)+(9y-5x+2z2)
(6k2+4k)+(4k2-6k+6)
(7a2+a+9b)-(6a2+7a-2b)
7x2+(6x2+2x-7)+(x-4)
2y2+(7x2-y)-(9x2-2y2)
4
(8x2-3xy+—x)-(9x2-2xy-7x)
5
77
(—xy+7y2-8)+(x2+—xy+y2+1)
68
11
(xy+—y+—)+(xy-x-6)
74
(7y+3x-5z2)+(7y+4x+9z2)
(9k2-2k)-(2k2-5k-5)
(a2+4a-8b)-(8a2+9a-9b)
x2+(5x2+8x-9)-(8x+8)
y2-(3x2+y)-(6x2+6y2)
5
(x2+7xy+—x)+(6x2+4xy+2x)
6
16
(—xy+y2+4)-(x2-—xy+4y2+7)
57
11
(xy-—y+—)-(xy+x+1)
77
(3y+7x+2z2)+(5y-4x-6z2)
(6k2+8k)-(k2+9k+5)
(2a2+a-5b)-(3a2+4a+8b)
7x2+(9x2+x+4)-(8x-9)
2y2+(4x2-y)+(2x2+y2)
1
(4x2+xy-—x)-(6x2+xy-x)
4
14
(—xy+4y2-3)+(x2-—xy+9y2-9)
53
16
(xy-—y-—)-(xy-x+8)
65
(7y+7x-4z2)+(8y+7x+6z2)
(k2+8k)+(6k2-k-4)
(a2+9a-7b)-(6a2+8a+7b)
6x2+(x2+6x-6)+(2x-8)
2y2+(2x2-y)-(8x2-7y2)
1
(8x2+2xy-—x)+(x2-7xy-6x)
6
65
(—xy-4y2-4)+(x2-—xy-6y2-2)
54
11
(xy+—y-—)-(xy+x+6)
55
(8y+9x-2z2)+(6y-2x-8z2)
(6k2+k)-(8k2-7k-6)
(6a2+9a-4b)+(a2-4a+b)
6x2+(2x2-5x+5)-(6x+5)
9y2-(x2-y)+(2x2+3y2)
7
(9x2-4xy-—x)+(2x2-8xy-7x)
6
91
(—xy+2y2-8)-(x2-—xy+8y2-1)
87
14
(xy-—y-—)-(xy-x-9)
43
(5y-5x+4z2)+(8y-x+3z2)
(5k2+8k)-(4k2+3k-3)
(9a2-6a-b)+(2a2-9a+4b)
9x2+(8x2+6x-7)+(8x-3)
8y2+(7x2-y)-(7x2-8y2)
6
(4x2-2xy+—x)+(7x2-4xy+6x)
5
71
(—xy+9y2-5)+(x2+—xy-6y2+7)
84
91
(xy-—y+—)+(xy-x-3)
87
(3y-8x+5z2)-(y-5x+z2)
(5k2-7k)+(9k2+3k+8)
(3a2-a-6b)-(7a2-4a+8b)
9x2+(5x2-7x-3)+(5x+4)
5y2-(5x2+y)+(6x2+2y2)
8
(7x2-4xy-—x)-(8x2-4xy+4x)
7
24
(—xy-6y2-9)+(x2+—xy-2y2+5)
33
35
(xy+—y+—)-(xy-x+3)
44
(5y+8x-7z2)-(9y-8x+7z2)
(2k2-6k)-(7k2-8k-2)
(6a2-4a+7b)-(9a2-3a+6b)
2x2+(7x2-4x-2)+(3x+7)
7y2-(7x2-y)-(6x2+8y2)
3
(3x2-6xy-—x)+(5x2-7xy-6x)
4
13
(—xy-6y2-3)+(x2+—xy+6y2-7)
84
92
(xy-—y-—)-(xy+x-3)
83
(7y-8x-3z2)-(4y+7x-8z2)
(5k2-8k)-(7k2+6k+6)
(5a2+a+9b)+(9a2+3a-2b)
3x2+(9x2+5x+2)+(8x-5)
8y2+(6x2+y)+(2x2-4y2)
1
(2x2-8xy+—x)+(4x2-9xy+9x)
8
64
(—xy+7y2-5)+(x2+—xy+6y2+1)
73
78
(xy-—y+—)+(xy+x-7)
67
(9y+8x-z2)+(8y-3x+z2)