七年级数学整式的加减法计算题大全 14.docx
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七年级数学整式的加减法计算题大全14
(2k2-8k)+(7k2+3k+3)
(4a2-7a-7b)-(8a2+3a+8b)
x2+(9x2+4x-6)+(3x-5)
9y2+(5x2+y)+(8x2-7y2)
1
(2x2+xy+—x)-(5x2+9xy-6x)
7
81
(—xy+9y2+3)-(x2-—xy+8y2+1)
77
11
(xy-—y-—)+(xy+x-1)
66
(9y-5x-z2)-(6y+4x+5z2)
(5m2+6m+8)+(9m+8n-1)
(8x2-x-6)+4(4x2-x)
-5(x2-4)-6(x2+9)
-(x2y+3xy+3)-7(x2y-3xy+5)
12
(—x2+26x-15y)-(—x2-15x+13y)
33
11
-—(k3-6k2+1)+—(4k3-6k2-5k)
22
(5k2+2k)+(3k2-5k+8)
(9a2-7a-3b)-(9a2-3a+2b)
7x2-(2x2+3x-3)+(8x-4)
2y2+(2x2+y)+(x2+4y2)
1
(9x2-5xy-—x)+(9x2+8xy-9x)
4
85
(—xy+3y2+3)+(x2-—xy+3y2+3)
74
16
(xy-—y-—)-(xy-x-9)
57
(8y+9x-2z2)+(y+4x-z2)
(8m2+8m-4)-(3m+8n-7)
(2x2+5x-3)+8(3x2-9x)
-7(x2+8)+2(x2-8)
-(x2y-5xy+8)+5(x2y-6xy-4)
88
(—x2-16x+15y)-(—x2-20x+28y)
77
11
-—(7k3-7k2-1)+—(6k3-4k2+5k)
23
(8k2+5k)+(5k2+8k+8)
(9a2+2a-3b)-(2a2-7a+7b)
x2-(3x2+6x-5)-(3x+1)
y2-(5x2-y)+(9x2-2y2)
5
(7x2-xy-—x)-(9x2-4xy+x)
6
46
(—xy+8y2+3)-(x2-—xy-7y2+7)
57
15
(xy+—y+—)+(xy+x-3)
36
(2y-x+z2)+(y-8x-5z2)
(2m2+7m+3)-(7m+8n-4)
(6x2+5x+9)+3(5x2-5x)
-4(x2+9)+4(x2-6)
-(x2y+4xy-9)+4(x2y+3xy-6)
51
(—x2-28x-16y)+(—x2-18x+29y)
66
11
-—(3k3-6k2-4)-—(k3-7k2+6k)
42
(9k2-k)+(4k2-4k+3)
(a2+9a-3b)-(a2-9a+2b)
2x2+(3x2-4x+2)-(9x-7)