初一数学下册计算题天天练 29Word格式.docx
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(8x2-8xy+—x)+(x2-5xy+5x)
5
(—xy-5y2+6)-(x2-—xy+4y2+7)
37
51
(xy+—y-—)+(xy+x+4)
48
(4y+2x+5z2)-(5y+8x+z2)
(6m2+2m-7)-(3m+8n-1)
(3x2+9x-7)-2(6x2+7x)
-9(x2-7)-5(x2-6)
-(x2y-2xy-7)+2(x2y-8xy+5)
18
(—x2+10x+19y)-(—x2-13x+16y)
77
-—(k3-k2+2)+—(7k3-8k2-6k)
66
(k2-2k)+(9k2-6k-9)
(5a2-9a-8b)-(a2+6a-6b)
8x2-(8x2-9x+3)+(4x+3)
y2-(5x2+y)-(8x2-8y2)
7
(7x2-xy-—x)-(5x2+3xy+8x)
6
89
(—xy-7y2+7)+(x2+—xy-5y2+5)
78
11
(xy+—y+—)-(xy+x+3)
57
(8y-3x-7z2)+(8y-5x-2z2)
(5m2+2m+1)+(3m-9n-2)
(5x2+2x-5)-2(5x2+7x)
-8(x2-4)+9(x2-7)
-(x2y-7xy-5)-5(x2y+8xy+3)
12
(—x2+25x+13y)-(—x2-15x+26y)
33
-—(5k3-9k2-1)-—(8k3-8k2-2k)
64
(6k2+4k)+(k2+9k+3)
(5a2+3a+b)-(4a2-3a+8b)
9x2-(6x2+3x-7)-(3x-6)
2y2+(3x2+y)-(6x2-5y2)
(5x2+5xy+—x)+(x2+xy-8x)
(—xy-4y2-3)+(x2+—xy-6y2-3)
57
37
(xy-—y-—)+(xy+x-8)
(8y-4x-8z2)-(y+2x-8z2)
(7m2+3m+8)+(2m-9n+1)
(7x2-4x-9)-9(5x2-5x)
-4(x2-6)+3(x2+8)
-(x2y-8xy+9)+4(x2y-5xy-6)
(—x2-10x+17y)+(—x2-17x-20y)
-—(5k3+3k2+3)-—(2k3-7k2+9k)
(9k2-2k)-(k2-8k-7)
(2a2+4a+b)-(5a2-5a-8b)
6x2-(8x2+8x-8)-(5x-3)
3y2+(5x2+y)-(6x2-3y2)
9
(3x2-7xy+—x)+(7x2-3xy-8x)
8
76
(—xy-8y2+9)+(x2-—xy-5y2+1)
87
45
(xy-—y+—)+(xy-x+8)
56
(9y+3x-5z2)+(7y+6x-2z2)
(7m2+8m+9)-(3m-3n-5)
(2x2-8x-7)+6(8x2-2x)
-6(x2+3)+7(x2-6)
-(x2y-4xy-5)-3(x2y+2xy+4)
16
(—x2-24x+15y)-(—x2+15x+24y)
55
-—(4k3-7k2+4)+—(9k3-5k2+3k)
26
(6k2-7k)-(2k2+2k+3)
(a2-9a-5b)+(3a2-6a-9b)
5x2-(7x2+x-7)-(9x-3)
3y2-(9x2+y)+(2x2+6y2)
(9x2+7xy-—x)+(2x2-2xy+8x)
3
(—xy+3y2-2)-(x2+—xy-5y2-9)
44
(xy-—y+—)+(xy+x-4)
33
(7y+6x+5z2)-(5y+8x-z2)
(9m2+2m+5)-(5m-9n+7)
(x2-7x-6)-4(2x2+7x)
-8(x2-5)-5(x2-7)
-(x2y-6xy-3)-8(x2y-3xy-5)
(—x2+19x+17y)-(—x2-16x-27y)
88
-—(4k3-2k2-6)+—(2k3+5k2-9k)
63
(8k2+7k)-(2k2-6k-4)
(7a2+9a+2b)+(2a2+4a-5b)
2x2+(6x2+2x+5)-(5x+1)
8y2+(3x2+y)-(6x2-7y2)
2
(2x2+8xy+—x)+(x2-3xy-7x)
17
(—xy+8y2-8)-(x2+—xy-y2+7)
56
63
(xy-—y-—)+(xy-x+8)
74
(8y-7x-4z2)+(8y-5x+9z2)
(6m2-8m-9)-(2m+3n-4)
(7x2-8x-4)+6(3x2-3x)
-9(x2-9)+3(x2+8)
-(x2y-5xy-7)-9(x2y-7xy+9)
35
(—x2+29x+20y)-(—x2-19x+28y)
-—(3k3+4k2+8)-—(9k3+9k2-4k)
(4k2-6k)-(8k2+9k+2)
(6a2+a+2b)-(7a2-7a+6b)
6x2-(8x2-5x-9)-(x-2)
2y2+(2x2-y)+(2x2+9y2)
(2x2-8xy+—x)-(3x2-8xy+7x)
4
(—xy+5y2+6)-(x2+—xy-y2-1)
38
61
(xy+—y-—)+(xy-x-3)
77
(2y-5x-2z2)+(8y+x+6z2)