七年级数学下册整式的加减法计算题 748.docx
《七年级数学下册整式的加减法计算题 748.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 748.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 748.docx](https://file1.bdocx.com/fileroot1/2022-10/25/6351e320-e590-4484-a931-45581fd6e5a1/6351e320-e590-4484-a931-45581fd6e5a11.gif)
七年级数学下册整式的加减法计算题748
1
(6x2-xy+—x)+(x2-7xy+7x)
4
61
(—xy-5y2+5)-(x2+—xy-y2+6)
77
55
(xy-—y+—)-(xy+x-4)
44
(5y+5x+3z2)+(y-2x+5z2)
(9k2-5k)-(9k2-7k-3)
(2a2-3a+b)+(8a2-9a-6b)
6x2-(6x2-6x-7)+(7x+7)
3y2-(6x2+y)+(9x2+4y2)
1
(x2-xy-—x)-(x2+5xy-4x)
4
41
(—xy+8y2+1)+(x2+—xy+5y2+7)
55
61
(xy+—y+—)+(xy-x+6)
55
(6y+6x-4z2)-(5y+x-5z2)
(2k2+7k)+(5k2+6k-2)
(2a2+5a+6b)+(6a2+3a-5b)
5x2+(9x2-3x-3)+(5x-2)
5y2+(6x2+y)-(8x2+8y2)
5
(5x2-9xy+—x)+(6x2+8xy+9x)
4
96
(—xy-6y2-6)-(x2+—xy+6y2+9)
87
35
(xy-—y+—)-(xy-x+9)
46
(9y+5x-6z2)-(3y+7x+z2)
(7k2+k)+(4k2+4k+5)
(9a2-a-7b)-(7a2+7a+8b)
9x2-(4x2-8x-7)-(3x-2)
2y2-(9x2+y)+(8x2-y2)
1
(9x2-4xy+—x)+(8x2+8xy+6x)
4
58
(—xy+y2-8)-(x2-—xy+y2+9)
47
11
(xy-—y-—)-(xy-x-1)
47
(6y-x-2z2)+(9y+4x-3z2)
(8k2-k)+(3k2-3k+4)
(4a2-6a-5b)-(a2+a+5b)
9x2-(3x2-8x+4)-(6x+3)
7y2+(5x2+y)-(7x2+4y2)
1
(5x2-5xy+—x)-(3x2-9xy+2x)
7
12
(—xy-6y2-3)+(x2-—xy+8y2+2)
53
45
(xy+—y+—)-(xy-x+4)
36
(y+6x+6z2)+(7y+3x-9z2)
(k2+k)-(9k2-5k-5)
(8a2-7a-b)-(3a2-8a-4b)
7x2+(5x2+x-2)-(8x+9)
7y2-(6x2+y)+(6x2+2y2)
1
(8x2-xy-—x)+(3x2+9xy-3x)
8
71
(—xy+9y2-3)+(x2+—xy-9y2+4)
84
41
(xy-—y+—)-(xy+x-9)
53
(9y-7x-z2)+(6y+4x+2z2)
(7k2+7k)-(4k2-4k+5)