七年级数学下册计算题6Word下载.docx
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2x2-(6x2+x-3)-(9x-4)
7y2-(5x2-y)+(9x2+9y2)
8
(5x2-2xy+—x)-(3x2-8xy-3x)
7
41
(—xy-2y2-3)+(x2+—xy+6y2+1)
54
(xy-—y-—)+(xy+x+5)
64
(6y+2x-z2)+(7y-6x+7z2)
(k2+5k)+(5k2-7k-9)
(9a2+7a-2b)+(7a2-7a-8b)
6x2-(2x2+7x+4)+(6x-1)
7y2+(x2+y)-(4x2-y2)
(3x2-2xy+—x)-(8x2+8xy-6x)
3
47
(—xy-7y2-9)+(x2+—xy+7y2-2)
38
21
(xy+—y-—)+(xy+x+9)
33
(y+6x-2z2)-(8y-x+5z2)
(6k2+2k)-(4k2-6k+4)
(8a2+2a+9b)+(6a2+8a+2b)
6x2-(3x2+3x-4)+(4x-6)
y2+(5x2-y)-(6x2-4y2)
9
(4x2-7xy-—x)+(2x2+5xy+9x)
(—xy-y2-3)+(x2+—xy+7y2+6)
55
(xy+—y-—)-(xy-x-3)
53
(8y-9x-6z2)+(9y-4x+7z2)
(8k2-2k)-(7k2-5k-8)
(5a2-5a+9b)+(9a2-9a+9b)
x2-(5x2+2x+7)-(6x+8)
3y2-(5x2+y)-(3x2+7y2)
1
(4x2+2xy-—x)-(8x2+xy-7x)
71
(—xy-5y2+6)+(x2+—xy-2y2-3)
88
56
(xy+—y-—)+(xy-x+5)
67
(3y-6x+6z2)-(3y+5x+9z2)
(2k2-8k)-(k2-3k-4)
(3a2+2a+3b)+(8a2-8a+3b)
x2+(6x2-6x+9)+(2x+3)
7y2-(3x2+y)-(x2+y2)
(7x2+7xy-—x)+(x2+5xy+8x)
11
(—xy+5y2+6)+(x2-—xy+8y2-3)
53
71
(xy+—y+—)-(xy-x-4)
(8y+5x-9z2)+(9y-9x-3z2)
(8k2+3k)+(5k2-6k+1)
(5a2-7a+5b)-(8a2-9a+4b)
5x2-(6x2-x-9)-(8x-8)
3y2+(2x2-y)-(6x2+y2)
(9x2+6xy+—x)-(7x2+8xy+2x)
15
(—xy-7y2+6)-(x2-—xy-7y2+1)
44
46
(xy-—y+—)+(xy-x-8)
35
(8y-8x+7z2)+(2y+3x+z2)
(3k2-k)-(k2+8k+2)
(7a2+8a-7b)-(4a2-5a+4b)
6x2-(7x2+7x-7)-(4x+1)
8y2-(2x2+y)-(8x2+9y2)
(2x2-5xy+—x)-(5x2+xy-5x)
46
(—xy+y2+5)+(x2+—xy+9y2-4)
14
(xy-—y+—)+(xy+x+3)
73
(5y+2x-2z2)-(4y-6x+5z2)
(9k2-2k)-(5k2-5k+3)
(9a2-7a-3b)-(4a2+8a-8b)
6x2+(6x2-x+9)-(5x+4)
y2+(4x2-y)-(6x2-4y2)
6
(4x2-6xy-—x)-(7x2+6xy+7x)
(—xy+9y2-4)+(x2-—xy-4y2+2)
13
(xy-—y+—)+(xy-x-4)
54
(7y-2x-z2)-(7y+3x-8z2)
(4k2-6k)-(8k2-9k+5)
(6a2+9a+2b)-(2a2+6a-3b)
8x2-(5x2+5x+6)-(2x-2)
8y2-(7x2-y)-(4x2+4y2)
(3x2-8xy-—x)+(5x2+2xy-6x)
75
(—xy-7y2+1)+(x2+—xy+7y2-4)
64
(xy-—y+—)+(xy+x-4)
65
(6y+x-8z2)-(y+7x+4z2)
(7k2+6k)-(2k2-7k-3)
(5a2-9a+3b)+(6a2-2a-b)
8x2+(8x2+x-1)+(x-1)
9y2-(5x2-y)+(6x2+9y2)
(8x2-6xy+—x)+(x2+8xy+7x)
69
(—xy-3y2+1)+(x2-—xy-y2+3)
58
43
(xy-—y-—)-(xy-x+5)
(9y+4x+z2)+(y+x-2z2)
(3k2+8k)-(6k2-7k-8)
(5a2+3a-b)-(8a2-a-3b)
5x2-(3x2+5x-7)+(5x-7)
3y2-(x2+y)-(4x2+8y2)
(9x2+6xy-—x)-(x2-2xy+9x)
(—xy+6y2+7)+(x2+—xy-3y2+2)
85
51
(xy+—y+—)+(xy-x+4)
(4y+6x+9z2)-(8y+5x+4z2)
(8k2+2k)-(2k2+8k+7)
(3a2+7a+4b)-(4a2-7a+6b)
7x2-(2x2+x-6)-(9x-5)
2y2+(x2+y)+(5x2-y2)
2
(6x2+6xy+—x)+(8x2+3xy-8x)
65
(—xy-4y2-1)+(x2-—xy+5y2+1)
(xy-—y+—)+(xy+x+6)
88
(9y-4x+8z2)-(2y-6x-7z2)
(7k2-2k)-(2k2-k-7)
(8a2+3a-4b)+(3a2-a-8b)
9x2-(9x2+3x+7)+(x+3)
y2+(4x2-y)+(3x2-y2)
(5x2-3xy-—x)-(4x2-8xy-9x)
31
(—xy-5y2-3)-(x2-—xy-7y2+2)
(xy+—y+—)+(xy+x+7)
(3y-9x+6z2)-(9y-8x+4z2)
(k2-k)-(3k2-4k-8)
(4a2-3a+2b)+(3a2+6a+b)
6x2-(x2+x+3)-(3x-7)
8y2+(9x2-y)+(3x2+y2)
(6x2-6xy-—x)-(2x2-8xy-4x)
17
(—xy-9y2+9)+(x2+—xy+5y2-4)
16
(xy-—y-—)+(xy+x+1)
(9y-4x+4z2)-(5y+3x+z2)
(5k2-8k)-(8k2-3k-5)
(a2-3a-b)-(6a2+2a+4b)
7x2+(7x2-6x+8)+(x-4)
3y2+(6x2-y)-(7x2-8y2)
(6x2-6xy-—x)-(8x2-6xy+3x)
(—xy+8y2+1)-(x2-—xy+4y2-6)
76
(x