七年级数学下册计算题大全34文档格式.docx
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3x2+(x2+6x-5)+(2x+7)
6y2-(4x2-y)+(2x2+9y2)
1
(7x2+4xy-—x)+(5x2-7xy-x)
7
15
(—xy-7y2-3)+(x2+—xy-3y2+4)
84
77
(xy+—y-—)-(xy-x+3)
86
(6y+x-6z2)+(5y-6x-2z2)
(7k2-6k)+(k2+3k-1)
(7a2-3a-6b)+(6a2-5a+6b)
8x2+(x2-8x+2)-(2x+4)
y2+(2x2+y)+(7x2-2y2)
(4x2-6xy-—x)-(5x2+5xy+4x)
(—xy-y2-6)+(x2-—xy-y2+3)
34
16
(xy-—y+—)-(xy+x+1)
65
(7y+5x-9z2)-(8y-9x+4z2)
(2k2-8k)-(2k2+3k-2)
(a2-4a+4b)+(5a2+a+4b)
7x2-(6x2+3x-1)+(5x+6)
9y2-(3x2-y)+(3x2-9y2)
(x2+6xy+—x)+(5x2+5xy-8x)
3
11
(—xy+6y2+3)-(x2+—xy-y2+5)
73
64
(xy+—y+—)+(xy-x-7)
55
(5y-9x-z2)-(7y+3x+5z2)
(4k2-9k)-(6k2+3k+3)
(2a2-6a+8b)-(8a2+8a+b)
x2-(7x2+8x+3)+(5x-8)
4y2-(3x2-y)-(5x2+8y2)
(7x2-5xy-—x)-(3x2-xy-7x)
8
(—xy-7y2+6)-(x2+—xy+5y2-8)
77
13
(xy-—y+—)+(xy+x+6)
74
(8y-6x-5z2)+(9y-x-7z2)
(6k2-k)-(7k2-8k-2)
(5a2+2a+9b)-(6a2-9a-4b)
8x2-(2x2-7x-1)-(4x-7)
2y2+(8x2-y)-(9x2-2y2)
(2x2-4xy-—x)-(4x2+9xy+8x)
63
(—xy-8y2-3)-(x2-—xy-9y2+1)
54
(xy+—y-—)+(xy+x-4)
44
(9y-7x-8z2)-(7y+3x-7z2)
(k2+k)-(6k2+6k+8)
(7a2-5a+4b)-(6a2-4a-2b)
3x2+(2x2+x-4)+(3x-6)
9y2-(9x2+y)+(6x2+7y2)
4
(2x2-6xy-—x)-(4x2+xy-7x)
41
(—xy-5y2+3)+(x2-—xy-6y2-1)
36
11
(xy+—y+—)-(xy-x-1)
(5y-2x+5z2)+(8y-x+6z2)
(9k2+6k)+(7k2+7k-6)
(7a2-a-5b)+(5a2-7a+7b)
2x2+(2x2-2x+9)+(9x+3)
y2+(4x2+y)+(9x2-4y2)
(6x2-4xy-—x)-(2x2+5xy-2x)
21
(—xy-3y2-6)+(x2-—xy-8y2-1)
33
56
(xy-—y+—)-(xy-x-4)
(y-5x+8z2)+(7y+4x+9z2)
(7k2+3k)+(2k2-4k+4)
(6a2-3a+2b)+(8a2+6a-4b)
5x2-(3x2+2x+2)-(3x+7)
6y2-(3x2-y)+(9x2-5y2)
(5x2-8xy-—x)+(3x2+6xy-7x)
19
(—xy+9y2+7)+(x2+—xy+3y2-9)
48
(xy-—y+—)+(xy+x+5)
(4y+6x+z2)+(8y+3x-4z2)
(8k2-4k)+(5k2-5k+2)
(3a2+5a-7b)-(6a2-a-4b)
3x2+(6x2-6x+9)-(2x+7)
6y2-(8x2+y)+(x2+9y2)
(9x2-8xy-—x)-(2x2-8xy-6x)
(—xy-3y2-7)-(x2-—xy+7y2+1)
35
48
(xy+—y-—)+(xy-x+4)
57
(8y+5x-5z2)-(2y+5x+6z2)
(9k2-k)-(9k2-8k-8)
(4a2+a-9b)-(3a2-8a-9b)
9x2-(4x2-2x-8)+(7x-6)
5y2-(x2-y)-(3x2-4y2)
(2x2+9xy-—x)+(4x2-4xy-9x)
(—xy-8y2-6)-(x2-—xy-8y2-7)
19
(xy-—y-—)-(xy+x+2)
58
(y-6x-3z2)-(6y+6x+8z2)
(9k2+2k)+(2k2-7k+9)
(7a2+2a+7b)-(5a2-2a-b)
5x2-(2x2-3x-6)-(7x-8)
6y2+(4x2-y)-(4x2+9y2)
(4x2-7xy-—x)-(6x2-7xy-6x)
(—xy-y2+4)+(x2-—xy-2y2+5)
45
(xy-—y-—)-(xy+x+1)
47
(6y+x+7z2)-(6y+6x+6z2)
(9k2+2k)-(k2+6k-8)
(7a2-3a+6b)-(7a2-9a+b)
8x2-(2x2-2x+5)+(x-2)
5y2+(7x2+y)+(3x2+6y2)
(7x2+7xy+—x)-(4x2-9xy+4x)
(—xy+y2+8)+(x2+—xy+6y2-7)
85
15
(xy+—y+—)-(xy-x+7)
(8y-8x-7z2)-(9y-5x+z2)