七年级数学下册计算题2.docx
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七年级数学下册计算题2.docx
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七年级数学下册计算题2
(9k2+5k)-(k2-8k+5)
(8a2+7a-4b)-(3a2+4a+7b)
x2+(5x2-9x-8)+(7x-6)
y2-(5x2+y)+(5x2-4y2)
5
(2x2-9xy+—x)+(8x2+8xy+2x)
6
77
(—xy-2y2+1)+(x2+—xy-8y2-7)
86
41
(xy+—y-—)-(xy-x-5)
54
(y-x+z2)-(y-7x+2z2)
(2k2+4k)-(9k2+2k+4)
(9a2-3a-b)+(2a2+8a+6b)
2x2+(x2+9x-1)-(7x-6)
7y2-(4x2+y)-(7x2-y2)
4
(5x2-2xy-—x)-(4x2+5xy+5x)
3
27
(—xy-5y2+4)+(x2+—xy+y2-9)
38
66
(xy+—y+—)-(xy-x-9)
57
(7y-x-6z2)+(3y-5x+2z2)
(k2-k)-(7k2-7k+3)
(4a2-8a-3b)-(9a2+9a-5b)
8x2+(6x2-3x-1)-(2x+6)
4y2-(x2+y)+(8x2-9y2)
1
(9x2-6xy+—x)-(5x2-5xy-3x)
5
18
(—xy-8y2-2)-(x2+—xy-8y2+6)
47
61
(xy+—y-—)+(xy+x-5)
56
(5y+x+7z2)+(9y+5x+9z2)
(8k2+5k)+(8k2-8k-7)
(7a2-2a+5b)+(5a2+a+9b)
8x2+(9x2-9x+3)+(6x+9)
6y2-(8x2+y)+(7x2+6y2)
7
(x2+5xy-—x)-(7x2+6xy-9x)
8
97
(—xy-5y2+5)-(x2-—xy+9y2-1)
88
85
(xy-—y+—)-(xy-x-2)
74
(8y+9x+2z2)+(3y+9x-2z2)
(k2-k)-(8k2-9k-6)
(3a2+9a-4b)-(9a2+4a+9b)
3x2-(3x2+x-8)-(7x+9)
6y2-(x2+y)+(2x2-7y2)
3
(6x2+8xy+—x)-(2x2-5xy-2x)
4
34
(—xy+y2+9)-(x2-—xy+6y2+8)
45
55
(xy+—y+—)+(xy-x+8)
64
(4y+3x-2z2)+(3y+8x+4z2)
(9k2-4k)-(k2+2k-4)
(2a2+3a+8b)+(2a2-6a-5b)
2x2+(3x2-x+7)-(x-9)
8y2-(5x2+y)-(9x2-6y2)
5
(9x2+7xy+—x)-(7x2-6xy-8x)
4
48
(—xy-4y2-2)-(x2+—xy-9y2-7)
57
81
(xy+—y+—)-(xy-x-3)
73
(4y-4x-4z2)+(3y+8x+3z2)
(5k2+3k)+(4k2-3k+6)
(5a2-7a-6b)-(2a2-9a-2b)
4x2-(8x2-2x-2)+(6x+6)
y2+(5x2-y)+(4x2-7y2)
4
(9x2+4xy-—x)-(9x2-4xy+7x)
3
57
(—xy-3y2-3)-(x2+—xy-9y2-2)
68
49
(xy+—y+—)+(xy-x+3)
58
(3y-9x+7z2)-(2y+x-z2)
(7k2+3k)+(4k2+7k-9)
(9a2-9a+8b)+(8a2+7a-2b)
2x2+(7x2+3x+6)-(5x-5)
7y2-(7x2+y)+(4x2-y2)
3
(8x2-3xy+—x)-(4x2-7xy-4x)
4
15
(—xy-7y2+3)+(x2+—xy-2y2+6)
56
81
(xy-—y-—)+(xy-x+6)
75
(2y+6x-6z2)-(8y-9x+z2)
(4k2-2k)-(3k2-6k+9)
(8a2-2a-b)-(2a2+6a-2b)
2x2+(8x2-2x+8)+(x+1)
3y2+(6x2-y)-(8x2+2y2)
1
(6x2+5xy-—x)-(4x2+7xy+7x)
5
56
(—xy-6y2+5)-(x2-—xy-2y2+1)
47
44
(xy+—y-—)+(xy+x-7)
35
(y+7x-4z2)+(5y+6x-7z2)
(5k2-4k)-(8k2+3k-4)
(6a2-7a-4b)-(4a2+8a+b)
7x2-(x2-x+9)-(9x-2)
8y2-(7x2+y)-(6x2+y2)
6
(3x2+4xy-—x)+(3x2-9xy-6x)
5
91
(—xy-6y2+9)+(x2-—xy+6y2-6)
83
46
(xy+—y-—)+(xy+x+5)
35
(5y+2x+3z2)+(7y+9x-4z2)
(8k2-6k)+(k2+7k+4)
(4a2-9a+6b)-(3a2+2a+8b)
2x2-(6x2-3x+4)-(x-2)
y2+(x2-y)-(x2+7y2)
5
(9x2+xy-—x)+(8x2-7xy+8x)
6
14
(—xy-5y2+5)-(x2+—xy-4y2-6)
33
11
(xy+—y-—)-(xy+x-3)
75
(2y+5x-7z2)+(7y-2x-6z2)
(9k2-2k)+(7k2-7k+8)
(a2+6a-b)-(5a2+6a+b)
4x2+(3x2+7x-3)+(6x+8)
3y2-(x2+y)+(7x2+6y2)
6
(9x2-5xy+—x)-(2x2-xy+4x)
5
56
(—xy+9y2+2)+(x2-—xy-4y2-4)
65
71
(xy-—y-—)-(xy-x+7)
83
(9y-7x-9z2)-(8y-2x+7z2)
(8k2+k)+(2k2+4k+7)
(8a2-6a-2b)-(4a2-5a-6b)
4x2-(9x2+7x-1)-(8x-2)
9y2-(3x2+y)+(6x2+4y2)
5
(x2-xy-—x)+(x2+2xy-x)
6
52
(—xy-8y2-1)-(x2-—xy+7y2+2)
63
73
(xy+—y-—)-(xy-x-5)
84
(7y+x+4z2)-(5y+9x+9z2)
(9k2+9k)-(k2+8k+6)
(4a2+2a+7b)+(a2+3a+6b)
8x2-(9x2+x-2)+(8x+3)
4y2-(3x2-y)+(4x2-5y2)
9
(3x2-8xy+—x)-(7x2+8xy-x)
8
16
(—xy-5y2+4)+(x2-—xy-y2-6)
67
18
(xy-—y-—)+(xy-x+2)
87
(8y+x+5z2)-(8y-5x-z2)
(k2+2k)-(8k2-k+2)
(8a2+9a-7b)-(a2-6a-2b)
2x2+(3x2-8x+2)+(x+7)
6y2-(6x2+y)+(4x2-y2)
1
(4x2+6xy+—x)-(6x2-xy-5x)
6
51
(—xy-8y2-3)-(x2+—xy-4y2+7)
65
56
(xy-—y-—)-(xy-x-4)
47
(3y-3x+5z2)-(7y-4x-9z2)
(2k2-9k)+(9k2-8k-5)
(4a2+5a+9b)+(3a2-2a+8b)
6x2-(4x2+x-5)+(2x-8)
y2-(3x2-y)-(5x2+8y2)
1
(9x2-xy+—x)-(x2-4xy+4x)
5
61
(—xy+8y2-9)+(x2+—xy-5y2-8)
73
41
(xy-—y-—)+(xy-x+4)
54
(6y-5x+8z2)+(5y+8x+8z2)
(6k2+5k)-(4k2+6k+5)
(9a2+4a-7b)-(a2+8a+7b)
4x2+(4x2+3x-5)-(3x+9)
4y2+(2x2+y)-(9x2+7y2)
8
(4x2+xy-—x)+(5x2+7xy-4x)
7
71
(—xy+3y2-9)-(x2+—xy+5y2-4)
85
58
(xy+—y+—)+(xy-x-2)
47
(2y+7x-7z2)-(6y-3x-6z2)
(3k2-k)-(k2+8k-5)
(2a2+3a+4b)-(a2+3a+2b)
x2+(7x2-7x+3)-(5x+6)
2y2+(4x2-y)-(2x2+3y2)
1
(8x2-7xy-—x)+(2x2+xy+3x)
7
15
(—xy-4y2-7)+(x2-—xy-5y2+2)
56
51
(xy-—y-—)+(xy+x-8)
44
(4y-2x-2z2)-(2y+6x+z2)
(2k2+7k)+(4k2+8k-8)
(5a2+7a-8b)+(9a2+8a+b)
x2-(3x2-9x-1)-(6x-5)
2y2-(6x2+y)-(2x2+y2)
8
(3x2+2xy-—x)+(6x2-7xy+4x)
7
11
(—xy-4y2+7)-(x2-—xy-2y2-7)
86
31
(xy-—y-—)+(xy-x-6)
44
(9y-4x-3z2)+(y-4x-5z2)
(9k2-7k)+(8k2+7k-3)
(5a2-5a-9b)+(7a2+8a+8b)
8x2+(5x2-4x+2)-(8x-8)
3y2+(7x2+y)+(3x2-5y2)
6
(2x2-6xy+—x)+(8x2+xy-2x)
5
65
(—xy+y2-5)+(x2-—xy-9y2+2)
54
81
(xy-—y-—)+(xy-x+4)
75
(y-8x-9z2)-(2y-x-8z2)
(9k2-8k)+(2k2+9k+2)
(a2+a+8b)+(a2-4a+b)
4x2+(5x2-5x+5)-(4x+1)
7y2+(x2-y)-(5x2+2y2)
6
(6x2-4xy-—x)+(2x2+2xy-8x)
7
13
(—xy+9y2+8)-(x2-—xy-y2+4)
44
41
(xy-—y+—)-(xy+x+1)
58
(4y-3x+2z2)-(7y-9x-9z2)
(8k2+3k)-(3k2+6k+9)
(2a2+6a-8b)+(9a2+6a+4b)
9x2-(8x2-4x+4)+(4x+9)
3y2+(5x2-y)+(7x2+y2)
8
(7x2+xy-—x)+(5x2-5xy+x)
7
54
(—xy+7y2+4)-(x2+—xy+7y2-1)
45
57
(xy-—y+—)+(xy-x+6)
68
(8y-3x+6z2)+(y-8x-5z2)
(7k2+2k)+(k2-3k-5)
(9a2-3a+7b)+(4a2+3a+8b)
8x2+(5x2+9x-9)-(5x+1)
6y2-(7x2+y)+(x2+8y2)
6
(6x2+6xy-—x)-(4x2-2xy+3x)
7
71
(—xy+y2-4)+(x2-—xy-3y2+4)
64
59
(xy+—y-—)+(xy-x+7)
68
(y+2x-2z2)-(y+6x+5z2)
(2k2-3k)+(5k2+3k+2)
(8a2-8a-8b)+(3a2-8a-2b)
x2-(2x2+x-6)+(9x+6)
5y2+(6x2-y)-(2x2+y2)
1
(5x2-6xy-—x)-(9x2+6xy-5x)
6
24
(—xy+5y2-6)+(x2+—xy-2y2+3)
35
72
(xy+—y+—)+(xy-x-4)
83
(4y+5x-6z2)+(3y+2x-4z2)
(6k2-3k)+(2k2+k-8)
(8a2+8a-3b)-(3a2-8a-4b)
4x2-(8x2-4x+1)-(7x-4)
y2-(7x2-y)+(3x2+5y2)
8
(4x2-xy-—x)-(6x2-2xy+6x)
7
71
(—xy-8y2-7)+(x2-—xy+6y2-2)
86
18
(xy-—y-—)+(xy+x+9)
57
(6y+2x+5z2)+(9y+4x+7z2)
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