七年级数学整式的加减法计算题大全 215.docx
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七年级数学整式的加减法计算题大全215
(a2-9a+6b)-(4a2-6a-7b)
4x2+(7x2-8x+3)+(6x-1)
5y2+(6x2-y)-(4x2-2y2)
4
(x2+4xy+—x)-(3x2+3xy-2x)
5
16
(—xy+5y2-4)+(x2+—xy-5y2-2)
75
28
(xy+—y-—)-(xy-x+8)
37
(2y+7x-7z2)-(3y+x+z2)
(6m2+5m+3)+(3m-6n+9)
(3x2-8x-6)-3(3x2+4x)
-2(x2+1)-9(x2+2)
-(x2y+3xy+4)-2(x2y+7xy+5)
35
(—x2+13x+10y)-(—x2-20x+19y)
44
11
-—(k3+9k2-1)+—(k3-5k2+8k)
46
(8k2+5k)+(k2-7k+9)
(3a2-4a-b)+(9a2+5a-b)
6x2-(8x2+2x-3)-(x+3)
7y2-(2x2+y)-(3x2-2y2)
6
(4x2-9xy-—x)+(7x2+9xy+6x)
7
73
(—xy-9y2+8)-(x2+—xy-2y2+4)
64
41
(xy+—y-—)+(xy-x+4)
33
(5y+4x-2z2)-(y-7x-7z2)
(7m2+2m+8)+(9m-6n+4)
(7x2-2x+6)-7(4x2+5x)
-7(x2-2)-4(x2+6)
-(x2y+8xy+7)+9(x2y+7xy+9)
61
(—x2-25x-13y)+(—x2-16x+18y)
55
11
-—(2k3+3k2+9)+—(5k3+7k2+7k)
42
(7k2+3k)+(8k2-9k+6)
(5a2-2a+4b)-(6a2-7a-b)
4x2+(7x2+9x+2)+(9x+7)
6y2-(8x2+y)+(3x2+9y2)
5
(x2+6xy-—x)-(4x2-8xy-4x)
6
11
(—xy+2y2-7)+(x2+—xy+5y2+5)
57
71
(xy+—y-—)+(xy-x-6)
67
(y+5x-2z2)+(9y+9x+6z2)
(m2+6m-8)+(4m-4n-8)
(7x2+7x+4)-2(3x2+x)
-5(x2+8)-6(x2+3)
-(x2y+6xy+2)+4(x2y+7xy+9)
86
(—x2-11x+17y)+(—x2-13x+19y)
77
11
-—(9k3-7k2+7)+—(9k3+2k2+1k)
23
(4k2-2k)-(6k2+5k-3)
(3a2-5a+7b)-(8a2-2a+4b)
3x2+(7x2+x+3)+(2x-7)
7y2+(8x2-y)-(7x2-7y2)