初一数学下册计算题天天练 34Word文档下载推荐.docx
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5
(4x2-6xy+—x)+(9x2-7xy+4x)
4
33
(—xy-8y2+7)-(x2+—xy-y2+6)
44
49
(xy+—y-—)+(xy-x+9)
38
(4y-6x+4z2)+(y+3x-7z2)
(7m2-2m+8)+(9m+2n-2)
(8x2+4x+3)-7(3x2+8x)
-5(x2+8)-4(x2-7)
-(x2y+7xy+3)+8(x2y-2xy+3)
(—x2+23x+17y)+(—x2-18x-16y)
-—(3k3+k2-8)-—(7k3-5k2-5k)
64
(2k2+6k)-(6k2-8k-5)
(4a2+3a-9b)+(5a2-3a-4b)
8x2+(5x2-8x+2)+(7x-7)
6y2-(8x2+y)+(3x2-2y2)
(2x2+8xy+—x)-(4x2-xy+3x)
3
22
(—xy+7y2+3)+(x2-—xy-7y2+9)
16
(xy-—y-—)-(xy-x-2)
67
(y-9x+2z2)-(6y+4x+7z2)
(7m2+3m+5)+(m+7n+1)
(3x2+x+9)+3(7x2-4x)
-7(x2+6)+2(x2+7)
-(x2y+8xy+8)-5(x2y+2xy-3)
71
(—x2-21x-10y)-(—x2-17x+13y)
66
-—(7k3-3k2+3)+—(5k3+9k2+5k)
24
(4k2-8k)+(4k2-6k+9)
(8a2-9a-7b)+(7a2+a+7b)
x2+(6x2-4x-2)-(4x-9)
3y2+(3x2-y)+(9x2-y2)
1
(6x2+9xy-—x)-(3x2+2xy+x)
6
18
(—xy+2y2+1)-(x2+—xy+5y2-1)
67
53
(xy+—y+—)-(xy-x+7)
64
(5y-4x-2z2)+(6y-x+9z2)
(4m2-9m+6)+(6m-8n-1)
(x2+8x+2)+9(x2-9x)
-5(x2-5)+9(x2+3)
-(x2y-8xy-8)-6(x2y-9xy+9)
(—x2-11x-15y)-(—x2-20x-17y)
-—(7k3+2k2-4)+—(2k3-3k2-9k)
45
(5k2+5k)-(5k2+2k-4)
(8a2-9a-6b)-(3a2+6a+6b)
5x2-(2x2-3x-5)+(2x-4)
4y2+(6x2+y)+(4x2+9y2)
(9x2+xy+—x)+(3x2+xy+6x)
7
35
(—xy+9y2-5)+(x2+—xy+y2-8)
46
41
(xy+—y+—)-(xy+x+8)
54
(7y+4x-7z2)-(y-3x+8z2)
(m2+4m-8)-(m+6n-2)
(x2-2x+7)-2(8x2-7x)
-7(x2+2)+7(x2+8)
-(x2y-9xy+2)+2(x2y+6xy+8)
86
(—x2-13x-17y)+(—x2+11x-10y)
-—(6k3+2k2+7)+—(3k3-k2-4k)
62
(7k2+4k)-(7k2-9k-7)
(5a2+3a-5b)+(8a2+2a-3b)
5x2+(3x2-6x-8)-(4x-1)
3y2+(6x2+y)+(4x2-8y2)
9
(3x2+9xy+—x)+(x2+3xy+2x)
8
19
(—xy-2y2-7)-(x2+—xy+8y2-5)
58
11
(xy-—y+—)+(xy-x+8)
85
(2y-8x+7z2)-(7y+4x+4z2)
(4m2+m+7)-(9m-n-5)
(7x2-x+7)+9(6x2+6x)
-3(x2+8)-2(x2+7)
-(x2y+8xy-7)-9(x2y+9xy+3)
41
(—x2+28x+16y)+(—x2+10x+15y)
-—(3k3+3k2-3)+—(3k3-7k2-6k)
(9k2-3k)-(5k2-2k-9)
(a2+9a-7b)+(2a2-4a+8b)
8x2-(x2+7x-3)+(9x-9)
9y2-(5x2-y)+(5x2+8y2)
(7x2+3xy+—x)+(2x2-6xy-2x)
56
(—xy-2y2-8)-(x2+—xy+6y2-8)
72
(xy+—y-—)+(xy-x-5)
83
(9y-4x-9z2)+(8y+9x-7z2)
(3m2-5m-2)+(4m-n-5)
(5x2-5x+3)-4(5x2+6x)
-3(x2-3)+6(x2+6)
-(x2y+9xy+5)-6(x2y-6xy-5)
61
(—x2+11x-14y)+(—x2-19x+17y)
-—(2k3+5k2+8)+—(4k3-4k2-1k)
26
(2k2+7k)+(k2-8k-9)
(3a2-6a+2b)+(9a2-6a-9b)
x2-(4x2+6x-3)+(9x-1)
9y2+(7x2+y)+(7x2-y2)
(3x2+9xy-—x)+(7x2+xy-8x)
(—xy-7y2-6)+(x2+—xy-3y2-8)
65
15
(xy-—y+—)-(xy+x-7)
44