七年级数学整式的加减法计算题大全 332.docx
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七年级数学整式的加减法计算题大全332
7x2+(4x2-x+9)-(5x-8)
2y2+(4x2+y)-(7x2+3y2)
6
(9x2-9xy+—x)+(8x2-xy-8x)
5
15
(—xy+6y2-2)+(x2+—xy-8y2+4)
86
13
(xy+—y+—)+(xy+x-2)
34
(8y-8x-6z2)-(8y+4x-z2)
(m2-m-6)-(9m+2n+6)
(9x2+9x-9)-5(4x2-9x)
-9(x2-8)-2(x2-3)
-(x2y-7xy-9)-9(x2y-9xy-3)
57
(—x2+18x+12y)-(—x2+20x-20y)
66
11
-—(2k3-2k2+9)+—(4k3-4k2+5k)
65
(5k2+8k)+(9k2+9k+5)
(4a2-6a+2b)+(7a2+7a-9b)
3x2+(2x2-6x-3)-(7x+5)
3y2-(3x2-y)+(6x2-8y2)
1
(3x2+3xy-—x)+(6x2+3xy+6x)
8
91
(—xy-2y2+1)-(x2-—xy-5y2+4)
87
11
(xy+—y-—)+(xy-x+6)
83
(2y+4x+7z2)-(9y-6x-8z2)
(9m2-5m+2)-(9m-7n-6)
(2x2+x-3)+9(6x2-2x)
-2(x2-9)-3(x2+4)
-(x2y-2xy+3)-8(x2y+8xy-4)
79
(—x2+27x-10y)+(—x2+17x-19y)
88
11
-—(2k3-2k2-7)+—(7k3+2k2-5k)
44
(4k2+9k)-(2k2+4k+2)
(2a2-5a-9b)-(2a2+a-7b)
7x2+(4x2+2x-1)+(4x-3)
4y2+(3x2+y)+(8x2+2y2)
5
(x2-3xy-—x)-(3x2+2xy-5x)
4
47
(—xy+7y2+1)+(x2-—xy+9y2-2)
38
81
(xy+—y-—)+(xy-x-7)
76
(8y-5x-9z2)-(8y-5x+7z2)
(3m2+5m+9)-(3m-9n+9)
(7x2-4x-7)-9(7x2-4x)
-2(x2+8)+4(x2+3)
-(x2y+2xy-2)-3(x2y-9xy-6)
11
(—x2+12x-14y)-(—x2+12x-14y)
77
11
-—(3k3+6k2-9)+—(4k3+2k2+3k)
46
(5k2-7k)+(8k2-5k+3)
(6a2-a-2b)-(8a2+3a+b)
7x2+(x2+6x+7)-(x+9)
6y2+(2x2+y)+(6x2-6y2)
1
(8x2-4xy-—x)+(3x2+9xy-7x)
8