七年级数学下册整式的加减法练习题精选强烈推荐 152Word格式文档下载.docx
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44
(—x2+11x-16y)+(—x2+10x+15y)
33
11
-—(7k3+2k2+1)+—(2k3+6k2-8k)
62
(7k2-6k)+(8k2+8k-4)
(a2+5a-2b)+(3a2-3a-8b)
8x2-(6x2+x-6)+(x-6)
6y2+(7x2+y)+(8x2+2y2)
1
(6x2+xy-—x)-(8x2+3xy+2x)
3
(—xy-7y2-6)-(x2+—xy-6y2-4)
68
59
(xy+—y+—)+(xy+x-9)
48
(5y-6x-z2)+(6y-4x+4z2)
(8m2+m+3)+(8m-5n+6)
(x2-x-4)-2(8x2-2x)
-4(x2+3)+7(x2+5)
-(x2y+4xy+4)-9(x2y+4xy+3)
66
(—x2+14x-10y)-(—x2-11x-29y)
77
-—(6k3+8k2-4)+—(k3-3k2+4k)
46
(k2-2k)-(4k2+6k+8)
(5a2-5a+3b)+(a2+4a-9b)
x2-(4x2+4x+8)+(6x+3)
3y2-(5x2-y)-(7x2+5y2)
5
(x2-7xy-—x)+(4x2+xy+3x)
6
15
(—xy-3y2+9)+(x2-—xy-3y2+1)
36
11
(xy+—y-—)-(xy+x+4)
83
(2y-2x-9z2)-(8y-7x-5z2)
(8m2+m+1)+(m-7n+5)
(x2+4x+2)-2(9x2+2x)
-7(x2-4)-9(x2+3)
-(x2y-2xy+6)-9(x2y+3xy-4)
(—x2+22x-20y)-(—x2+16x+26y)
-—(6k3+k2+1)-—(8k3-7k2-8k)
42
(4k2-4k)+(9k2-6k-5)
(8a2+3a+b)-(2a2+a+3b)
3x2+(4x2-8x+4)+(8x+5)
6y2-(2x2-y)+(7x2+7y2)
(5x2+5xy+—x)+(6x2+7xy-5x)
7
86
(—xy+4y2+5)+(x2+—xy-3y2-3)
41
(xy+—y+—)-(xy+x+9)
55
(6y+3x+9z2)+(5y+6x-5z2)
(4m2-6m+1)+(3m-2n+4)
(9x2-5x+1)+9(2x2-4x)
-5(x2+3)+3(x2-1)