七年级数学整式的加减法计算题大全 68Word文档格式.docx
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(—x2-17x-15y)-(—x2+20x+28y)
66
11
-—(2k3-4k2-3)+—(8k3-7k2-9k)
63
(5k2-k)-(7k2-8k+5)
(8a2+5a+4b)-(2a2-8a-9b)
8x2-(7x2-4x-8)-(9x-8)
5y2+(9x2-y)-(4x2+2y2)
1
(6x2-xy-—x)-(9x2+9xy+6x)
8
14
(—xy+8y2-2)+(x2+—xy+2y2+2)
73
55
(xy+—y+—)-(xy-x-4)
46
(5y+7x-9z2)-(5y-8x+4z2)
(2m2+8m+3)-(9m-2n-3)
(7x2+5x+9)-4(4x2+9x)
-7(x2+4)+7(x2+8)
-(x2y+9xy+6)-3(x2y-4xy+9)
91
(—x2-10x-11y)+(—x2-12x+25y)
88
-—(5k3+2k2+2)-—(2k3+4k2+2k)
24
(3k2+k)-(k2+k+9)
(2a2+7a+2b)-(a2+a-5b)
8x2-(x2-3x-3)+(5x+2)
y2+(8x2-y)-(x2+7y2)
(4x2-9xy-—x)-(6x2+5xy-9x)
98
(—xy-2y2-9)-(x2+—xy-3y2+4)
87
11
(xy+—y-—)+(xy-x+6)
67
(2y+9x-7z2)+(7y-6x-3z2)
(8m2-8m+4)-(m-3n+1)
(x2-3x+5)-2(5x2+7x)
-8(x2+8)-9(x2+6)
-(x2y+7xy+7)+4(x2y+8xy-5)
(—x2+15x-13y)-(—x2+18x+25y)
-—(8k3+6k2+6)+—(8k3-6k2-7k)
42
(7k2+3k)-(5k2-8k-2)
(5a2-9a+4b)+(7a2+7a-2b)
3x2+(2x2-3x+1)+(5x+2)
8y2+(3x2-y)+(9x2-5y2)
4
(7x2+2xy+—x)+(3x2-6xy+7x)
3
46
(—xy+y2+7)+(x2-—xy+6y2-4)
35
17
(xy-—y+—)-(xy+x+3)
76
(7y+5x-8z2)-(5y-3x+9z2)
(9m2-6m-1)-(5m-7n-1)
(7x2+5x-8)+8(8x2+8x)
-8(x2-4)-6(x2+8)