七年级数学整式的加减法计算题大全 132.docx
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七年级数学整式的加减法计算题大全132
9
(9x2-2xy+—x)+(9x2-3xy-2x)
8
17
(—xy+9y2-5)-(x2-—xy-2y2-3)
86
11
(xy-—y-—)-(xy+x-8)
45
(7y+7x-4z2)+(7y+2x-7z2)
(8m2-6m+2)+(2m-n-8)
(9x2+8x+7)-4(7x2-x)
-7(x2-2)+8(x2-8)
-(x2y+7xy+5)-2(x2y+4xy+8)
11
(—x2-24x+19y)-(—x2+20x+12y)
44
11
-—(7k3+5k2+3)+—(8k3+7k2-1k)
24
(4k2+3k)-(5k2+4k+1)
(4a2-6a-4b)-(4a2+4a+4b)
2x2-(6x2-9x-6)-(4x-5)
3y2-(8x2+y)-(5x2+8y2)
1
(8x2-5xy+—x)-(7x2-5xy-3x)
7
17
(—xy-6y2+6)+(x2+—xy-4y2+4)
68
73
(xy+—y-—)-(xy-x-2)
84
(6y+x-z2)+(5y-2x+5z2)
(m2-8m+9)+(m-7n+5)
(4x2-4x-5)-4(9x2-7x)
-2(x2+2)+5(x2+7)
-(x2y-6xy-3)+4(x2y+4xy+7)
46
(—x2+30x-10y)+(—x2-15x+15y)
55
11
-—(9k3+6k2+8)-—(2k3+6k2-5k)
44
(5k2-9k)+(5k2+3k+6)
(9a2+9a-b)+(7a2+7a-3b)
6x2+(9x2-x+2)+(6x-1)
8y2+(8x2+y)-(6x2-y2)
1
(3x2-6xy+—x)+(6x2-3xy+5x)
7
11
(—xy+9y2-7)-(x2-—xy+6y2+2)
77
15
(xy+—y+—)-(xy+x+8)
76
(y+4x+5z2)+(4y-6x+3z2)
(m2+4m+8)+(6m-7n-1)
(x2-9x+8)-2(7x2+6x)
-2(x2+8)-3(x2+4)
-(x2y+5xy-9)+2(x2y-8xy+4)
99
(—x2+26x+16y)-(—x2-10x+16y)
88
11
-—(2k3+2k2+1)+—(k3+9k2-9k)
62
(2k2+k)+(7k2-k-1)
(3a2-4a-4b)+(4a2+6a+6b)
x2+(7x2-6x+6)+(x-4)
y2-(9x2-y)+(9x2-9y2)
1
(x2-7xy+—x)+(8x2-7xy-9x)
3
46
(—xy-7y2-5)-(x2+—xy+y2+5)
57
12
(xy+—y-—)-(xy+x+6)
83