七年级数学下册计算题大全172Word文档格式.docx
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6x2-(5x2+6x+3)-(6x+8)
7y2+(5x2-y)-(3x2-y2)
9
(9x2-2xy-—x)+(7x2+5xy+4x)
8
61
(—xy+6y2+4)-(x2-—xy+7y2-7)
53
54
(xy+—y+—)-(xy+x-1)
45
(4y+9x-5z2)-(2y+2x+2z2)
(4k2-8k)+(3k2+3k+7)
(7a2+4a+8b)-(4a2-6a-7b)
5x2-(3x2+7x+9)-(4x+4)
6y2-(2x2-y)-(7x2+8y2)
4
(4x2-2xy-—x)+(2x2-9xy+7x)
5
(—xy+7y2+1)+(x2-—xy+3y2+2)
77
47
(xy+—y-—)-(xy-x-3)
56
(9y-3x-2z2)-(3y-7x+2z2)
(4k2+4k)+(4k2+9k+9)
(3a2-5a+8b)+(6a2-3a+7b)
9x2+(9x2-x+5)+(5x-6)
9y2-(7x2+y)-(4x2-9y2)
(8x2-2xy-—x)+(5x2+2xy-2x)
14
(—xy+5y2+2)+(x2-—xy+7y2+2)
43
14
(xy+—y+—)-(xy-x+8)
(7y-7x-2z2)-(7y+4x+2z2)
(6k2+2k)+(9k2-6k+4)
(9a2-9a+9b)+(9a2-2a+4b)
3x2-(7x2-4x+6)+(5x+4)
7y2+(2x2+y)+(x2+6y2)
(9x2+4xy-—x)-(4x2-5xy-7x)
21
(—xy+9y2-2)+(x2-—xy-4y2+5)
33
19
(xy+—y-—)-(xy-x+3)
58
(8y-4x+6z2)+(3y+3x+9z2)
(5k2+2k)-(3k2+8k-3)
(9a2-2a+8b)+(5a2+8a+6b)
7x2+(8x2+8x-9)+(8x+1)
9y2-(5x2+y)-(4x2+2y2)
(3x2+xy-—x)-(7x2-2xy+9x)
6
16
(—xy-9y2-1)+(x2-—xy+7y2-2)
75
15
(xy+—y-—)+(xy-x-6)
84
(6y+5x+7z2)-(4y-3x+5z2)
(3k2+7k)+(5k2+7k-2)
(4a2+a+3b)-(9a2+4a-7b)
9x2+(9x2-8x-7)-(4x+7)
9y2+(2x2+y)+(3x2+6y2)
7
(5x2-6xy+—x)-(x2-2xy+9x)
(—xy+9y2-4)+(x2+—xy+8y2+1)
38
11
(xy+—y-—)-(xy-x+4)
64
(8y-8x+z2)+(4y+3x+4z2)
(6k2+3k)-(5k2-k+9)
(9a2-8a+6b)+(4a2-6a-2b)
2x2-(x2-8x+6)-(4x+4)
4y2+(5x2-y)-(4x2+5y2)
(8x2-9xy+—x)+(8x2-7xy-8x)
(—xy-8y2+9)-(x2+—xy+4y2+9)
63
18
(xy+—y+—)+(xy-x+1)
67
(7y+8x-9z2)+(7y+x-4z2)
(9k2-k)+(4k2+k+5)
(5a2-4a-7b)-(3a2+5a-9b)
8x2-(4x2-8x+9)-(5x-4)
7y2+(2x2+y)-(5x2-3y2)
(2x2+6xy+—x)+(2x2+9xy+3x)
(—xy-2y2+4)-(x2-—xy-7y2-4)
94
(xy+—y-—)-(xy+x+5)
85
(3y+x-4z2)-(5y-5x-z2)
(5k2-5k)+(7k2+7k+5)
(4a2+9a+9b)-(a2+9a+b)
7x2+(2x2-2x-6)-(5x+2)
8y2+(4x2+y)+(9x2+y2)
(x2-5xy-—x)+(6x2+5xy+2x)
(—xy-9y2-5)+(x2-—xy-2y2-6)
57
(xy+—y+—)-(xy+x-9)
53
(y+6x-6z2)-(y-5x+9z2)
(5k2+3k)+(7k2+5k-5)
(2a2-3a+8b)+(3a2+7a+9b)
7x2+(7x2-3x+7)+(6x-5)
6y2-(9x2-y)+(5x2-3y2)
(7x2+3xy-—x)+(7x2-2xy+3x)
18
(—xy-2y2-7)-(x2-—xy-6y2-3)
87
(xy+—y-—)-(xy+x-9)
76
(6y-2x+7z2)-(5y-2x+7z2)
(4k2-9k)-(6k2-4k+8)
(8a2+4a-b)-(4a2-a-2b)
8x2-(5x2+6x+4)-(4x+8)
4y2-(5x2-y)-(6x2+3y2)
(3x2+3xy-—x)+(x2+6xy-3x)
31
(—xy+6y2-1)+(x2+—xy-7y2+6)
45
(xy-—y-—)-(xy+x+5)
83
(2y-4x+3z2)+(6y-8x+8z2)
(7k2-k)+(7k2-5k+4)
(6a2-9a+9b)-(5a2-a-7b)
x2-(3x2-8x+9)+(x+5)
y2-(2x2-y)+(9x2+y2)
(x2-8xy-—x)+(x2+7xy-3x)
(—xy-3y2-5)-(x2+—xy+5y2-7)
76
(xy-—y-—)+(xy+x-7)
87
(6y+8x-4z2)+(8y-8x-9z2)