七年级数学下册计算题4.docx
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七年级数学下册计算题4.docx
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七年级数学下册计算题4
(k2-8k)-(9k2+2k+4)
(9a2+a+6b)+(a2-2a+6b)
4x2-(5x2-8x+4)+(x+5)
8y2-(5x2+y)+(4x2+5y2)
8
(5x2+4xy-—x)-(6x2+xy-5x)
7
15
(—xy-9y2-8)-(x2+—xy-4y2+2)
54
95
(xy-—y+—)+(xy-x-5)
86
(2y-7x+3z2)-(7y-x+8z2)
(k2-5k)+(k2-8k+9)
(7a2+7a-5b)-(5a2+8a+7b)
7x2-(9x2-x+8)+(2x+3)
2y2+(9x2-y)-(2x2-4y2)
1
(3x2-5xy+—x)+(6x2-xy+3x)
4
48
(—xy+8y2-9)-(x2+—xy-9y2+2)
57
64
(xy-—y-—)+(xy-x+9)
73
(6y-3x+2z2)-(6y-4x+z2)
(5k2+6k)-(k2-8k-3)
(3a2-4a-7b)+(8a2-2a-3b)
x2+(4x2+9x+2)+(8x-6)
3y2+(2x2+y)+(9x2-4y2)
5
(2x2-xy-—x)-(6x2-2xy+6x)
4
98
(—xy+3y2+4)+(x2+—xy+3y2+6)
87
98
(xy-—y+—)+(xy+x+6)
87
(9y-9x+9z2)+(9y-4x+6z2)
(5k2+2k)+(7k2-9k-1)
(9a2+5a+b)-(7a2+2a+5b)
6x2-(2x2-2x+8)+(x-1)
6y2+(x2-y)+(9x2-6y2)
1
(7x2+xy+—x)+(6x2-4xy-8x)
3
81
(—xy+9y2-3)+(x2-—xy+4y2-5)
76
62
(xy+—y+—)-(xy-x+8)
53
(9y-3x-2z2)-(9y-3x+4z2)
(5k2+k)+(8k2-k-2)
(6a2-8a-7b)-(6a2+9a-3b)
9x2-(2x2-3x-9)-(8x-2)
6y2-(6x2-y)-(4x2-8y2)
1
(3x2-2xy+—x)+(3x2-3xy-7x)
8
41
(—xy+6y2-3)-(x2+—xy+5y2+8)
38
12
(xy+—y+—)+(xy-x-9)
43
(8y+4x+z2)-(2y+6x-9z2)
(6k2-4k)-(8k2-7k+5)
(8a2-7a+2b)-(3a2-6a+5b)
2x2+(8x2+8x+1)+(5x-2)
y2-(5x2+y)-(8x2-4y2)
5
(6x2-xy-—x)-(3x2+2xy-x)
4
54
(—xy-8y2-2)+(x2+—xy+7y2-5)
45
15
(xy+—y-—)-(xy-x-3)
56
(4y+6x+2z2)-(8y+6x+8z2)
(2k2-5k)-(8k2-k-4)
(2a2-9a+2b)-(5a2+8a-4b)
9x2+(3x2-x+5)+(4x+1)
7y2+(5x2+y)-(8x2+8y2)
7
(3x2-8xy+—x)-(7x2-xy-7x)
6
79
(—xy-7y2+4)-(x2+—xy-5y2+9)
88
75
(xy+—y-—)+(xy+x-8)
66
(y+2x+3z2)+(7y+3x+5z2)
(2k2-8k)-(6k2+4k-6)
(9a2-3a+2b)-(4a2-2a+b)
7x2-(4x2+6x+9)-(3x-6)
9y2-(x2-y)+(8x2+4y2)
9
(x2+6xy+—x)-(2x2-8xy+4x)
8
11
(—xy-8y2+4)-(x2-—xy-y2+5)
64
11
(xy+—y+—)-(xy-x-5)
63
(4y+8x+z2)+(3y-2x-8z2)
(7k2-3k)+(7k2-k+3)
(5a2-6a+4b)+(4a2-4a-7b)
3x2-(5x2-3x-8)-(2x+4)
4y2+(4x2+y)-(2x2+3y2)
9
(9x2-6xy+—x)-(8x2+3xy-6x)
8
15
(—xy+2y2+6)-(x2+—xy+3y2+5)
64
19
(xy+—y-—)-(xy-x-1)
38
(y+6x+8z2)+(7y-7x+8z2)
(5k2+6k)+(6k2+4k-2)
(3a2+5a+b)-(3a2+6a-7b)
5x2-(3x2+9x+1)+(8x+9)
5y2+(6x2-y)-(4x2-2y2)
1
(7x2+5xy+—x)-(6x2-9xy+2x)
6
51
(—xy-y2-7)+(x2-—xy+8y2+5)
64
14
(xy-—y-—)+(xy-x+2)
55
(5y-6x-3z2)-(9y-3x+8z2)
(6k2+4k)+(6k2-4k+1)
(4a2-4a+8b)-(3a2+7a-5b)
7x2+(8x2+5x-9)+(3x+7)
y2+(5x2+y)-(x2+4y2)
5
(2x2+6xy-—x)-(4x2+5xy+4x)
6
58
(—xy+4y2+3)+(x2-—xy-6y2+1)
47
11
(xy-—y-—)-(xy+x-5)
55
(7y-3x-7z2)+(3y-6x+z2)
(2k2-2k)+(9k2+3k+5)
(9a2-7a-3b)+(7a2+3a-7b)
6x2+(7x2+7x-2)-(6x-8)
4y2-(3x2-y)+(2x2+3y2)
3
(7x2+3xy+—x)+(9x2+7xy-9x)
4
81
(—xy+3y2+5)-(x2+—xy-7y2-4)
75
41
(xy+—y+—)-(xy+x+5)
57
(9y-8x-9z2)+(y+2x+6z2)
(2k2+7k)-(9k2+2k+6)
(9a2-8a-8b)-(2a2-9a-6b)
7x2+(2x2+8x-9)-(8x+6)
6y2+(x2-y)-(5x2-8y2)
6
(6x2-4xy+—x)-(8x2+9xy-5x)
7
12
(—xy+6y2-1)-(x2+—xy+7y2+9)
83
14
(xy+—y-—)+(xy-x+5)
35
(9y+8x+5z2)+(9y-4x+5z2)
(6k2+4k)-(9k2+3k+8)
(4a2+4a+2b)+(3a2-a-9b)
x2+(x2+8x-8)-(9x+1)
8y2+(8x2-y)-(2x2-2y2)
1
(7x2-8xy-—x)-(6x2+4xy+5x)
6
71
(—xy+8y2+3)-(x2+—xy-6y2+4)
68
15
(xy+—y+—)-(xy-x-5)
74
(8y-2x+5z2)-(3y-4x-3z2)
(2k2-k)+(5k2-7k+3)
(3a2-6a+5b)-(4a2+5a+2b)
3x2+(4x2-9x+4)-(7x+2)
5y2+(2x2-y)-(5x2-9y2)
5
(3x2-3xy-—x)+(x2-2xy+4x)
4
67
(—xy-2y2-3)+(x2+—xy+3y2+5)
78
71
(xy-—y-—)+(xy+x-5)
63
(9y-7x+5z2)-(7y-7x+z2)
(8k2+2k)+(4k2+3k-9)
(a2+9a-2b)+(a2+8a-5b)
9x2+(x2-2x+9)-(7x-5)
5y2+(4x2+y)+(3x2-6y2)
9
(4x2+5xy-—x)+(2x2-3xy+x)
8
53
(—xy-8y2-8)-(x2-—xy-6y2-4)
64
15
(xy+—y-—)-(xy+x+6)
54
(y+4x-2z2)-(2y-x+6z2)
(3k2+6k)+(9k2-k-6)
(9a2-5a+7b)+(5a2-3a+3b)
7x2-(8x2+x-6)+(6x+3)
5y2-(8x2-y)-(2x2-8y2)
6
(8x2+xy+—x)-(5x2+9xy-8x)
5
12
(—xy+7y2-2)+(x2+—xy-y2-3)
83
71
(xy-—y+—)-(xy-x+7)
66
(4y+x-6z2)-(7y-x+z2)
(2k2+k)-(8k2-7k+1)
(6a2+7a+4b)+(a2-3a-2b)
4x2-(5x2+5x-6)-(4x+8)
5y2-(6x2-y)+(x2-2y2)
1
(4x2+4xy+—x)+(x2+xy+4x)
6
49
(—xy-y2+9)+(x2+—xy-5y2-2)
38
77
(xy+—y-—)-(xy-x+2)
86
(3y+x-8z2)-(8y+8x+4z2)
(7k2-4k)-(6k2+9k+8)
(3a2-2a-6b)+(6a2+2a+3b)
5x2-(3x2+x+4)+(9x+3)
9y2+(x2+y)+(6x2+7y2)
4
(x2+7xy+—x)+(8x2+xy+8x)
5
11
(—xy+8y2+9)+(x2-—xy+4y2+9)
64
74
(xy+—y+—)+(xy+x-7)
63
(9y+x-8z2)-(6y-2x-z2)
(7k2-8k)+(4k2-k+7)
(5a2+4a+3b)+(9a2+7a+2b)
8x2-(2x2+9x+1)-(3x-1)
5y2-(3x2-y)+(6x2-4y2)
6
(8x2+8xy+—x)-(x2-9xy+4x)
5
82
(—xy-4y2+5)+(x2-—xy+7y2+6)
73
64
(xy-—y-—)-(xy+x-3)
53
(9y-5x-4z2)-(5y-5x+8z2)
(k2+6k)-(3k2-9k+2)
(7a2+2a-8b)-(4a2-a-3b)
6x2-(7x2-8x+2)-(5x-9)
6y2-(5x2+y)+(3x2-2y2)
2
(x2-8xy+—x)-(2x2+3xy-8x)
3
49
(—xy-3y2+5)-(x2+—xy+5y2-5)
38
54
(xy-—y+—)+(xy+x-3)
65
(6y+7x-2z2)+(4y+9x+7z2)
(2k2+3k)-(8k2+2k+3)
(3a2-5a-8b)-(7a2-8a-6b)
6x2+(6x2-6x-7)+(3x-8)
4y2+(2x2-y)-(7x2-9y2)
5
(2x2+9xy-—x)+(7x2+4xy+5x)
4
41
(—xy+3y2+5)+(x2+—xy+6y2+6)
55
46
(xy-—y-—)-(xy+x-1)
55
(3y+x+5z2)+(5y+9x+8z2)
(9k2-9k)-(2k2+7k-7)
(a2+2a+8b)-(7a2-4a-3b)
9x2-(2x2+2x+2)+(7x+2)
3y2-(5x2-y)-(6x2+8y2)
7
(4x2+8xy-—x)-(5x2+9xy+8x)
8
76
(—xy-9y2+7)-(x2+—xy-8y2-5)
85
74
(xy-—y+—)+(xy-x+7)
83
(7y+x-9z2)+(4y+6x+6z2)
(9k2+3k)+(9k2-9k-8)
(6a2-2a+8b)+(5a2-6a+9b)
5x2-(9x2-4x+3)-(5x-5)
y2+(6x2+y)+(3x2+9y2)
9
(7x2+4xy+—x)-(x2-9xy-9x)
8
35
(—xy+4y2-8)-(x2-—xy-4y2-9)
44
91
(xy-—y+—)+(xy+x-2)
87
(y+x-3z2)+(8y+2x+3z2)
(6k2-6k)-(8k2+7k+2)
(3a2+5a+5b)+(7a2-2a-b)
7x2+(3x2+7x+8)+(5x+8)
5y2-(4x2-y)+(6x2+6y2)
1
(8x2+3xy+—x)+(8x2+3xy-6x)
7
71
(—xy+5y2-9)+(x2-—xy+5y2-3)
87
46
(xy+—y+—)+(xy+x+2)
35
(y+4x-8z2)+(2y-2x-9z2)
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