七年级数学下册整式的加减法计算题 717.docx
《七年级数学下册整式的加减法计算题 717.docx》由会员分享,可在线阅读,更多相关《七年级数学下册整式的加减法计算题 717.docx(5页珍藏版)》请在冰豆网上搜索。
![七年级数学下册整式的加减法计算题 717.docx](https://file1.bdocx.com/fileroot1/2023-1/21/48c94c39-aa7b-44cb-bab4-bfe1737012af/48c94c39-aa7b-44cb-bab4-bfe1737012af1.gif)
七年级数学下册整式的加减法计算题717
(4a2-5a-5b)+(6a2-8a+8b)
x2-(7x2+4x-9)-(4x+8)
8y2+(8x2-y)+(2x2-6y2)
4
(5x2-4xy-—x)+(2x2-7xy+9x)
5
35
(—xy+3y2+2)-(x2-—xy-y2-3)
44
67
(xy+—y-—)+(xy-x-8)
58
(y-6x+6z2)-(9y-4x-5z2)
(3k2+5k)-(3k2+k-5)
(5a2+6a-8b)+(5a2+4a-9b)
3x2+(7x2-5x+2)+(9x+4)
4y2+(4x2+y)+(5x2+5y2)
7
(x2-8xy+—x)+(9x2-6xy+9x)
6
14
(—xy-6y2-3)-(x2-—xy-7y2+3)
65
16
(xy-—y-—)+(xy+x+5)
57
(8y+x-6z2)+(y+4x+4z2)
(k2-6k)+(7k2-2k-4)
(a2-5a+4b)+(5a2-a-8b)
9x2+(x2-5x+5)+(2x+7)
5y2-(7x2+y)+(9x2-8y2)
1
(5x2-2xy-—x)+(2x2-6xy+7x)
7
95
(—xy+3y2-9)+(x2-—xy+7y2-5)
84
95
(xy-—y-—)+(xy-x+9)
86
(4y+7x-7z2)-(6y+2x+2z2)
(8k2-2k)-(8k2+k-9)
(7a2-4a-3b)+(5a2+5a+2b)
9x2+(4x2+9x-2)+(7x-8)
3y2-(9x2-y)-(8x2+5y2)
1
(6x2-9xy-—x)+(x2-7xy+7x)
8
71
(—xy-5y2+4)+(x2+—xy+5y2-8)
67
51
(xy-—y-—)+(xy+x+7)
44
(7y-8x+6z2)+(9y-6x+3z2)
(5k2-8k)+(6k2-4k-4)
(4a2-2a+5b)-(5a2+8a-6b)
7x2+(8x2-x+4)+(8x+5)
8y2+(3x2-y)-(5x2-2y2)
1
(x2-7xy+—x)-(9x2-xy+2x)
6
41
(—xy-y2-9)+(x2+—xy+y2-9)
36
41
(xy-—y-—)+(xy+x-2)
33
(6y+5x+7z2)-(y-8x-2z2)
(8k2+3k)-(3k2+k-8)
(5a2-7a-9b)-(6a2-a+8b)
7x2-(4x2+3x+9)-(2x+2)
3y2-(5x2-y)-(2x2+4y2)
7
(8x2+9xy-—x)-(x2-9xy-8x)
6
17
(—xy+6y2-1)-(x2+—xy-3y2-8)
66