七年级数学整式的加减法计算题大全 37.docx
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七年级数学整式的加减法计算题大全37
11
-—(9k3-9k2-6)+—(8k3-6k2+9k)
23
(8k2+2k)-(7k2-8k+4)
(2a2+6a+8b)+(a2-8a+7b)
9x2+(4x2+x+4)-(7x+6)
9y2+(2x2+y)+(2x2-7y2)
1
(6x2-8xy-—x)-(6x2+9xy-5x)
5
81
(—xy+9y2-9)-(x2-—xy+y2+2)
73
15
(xy-—y-—)+(xy-x-7)
86
(4y-7x-5z2)-(6y+7x-3z2)
(6m2+5m-8)+(7m-6n+2)
(4x2+5x+9)-4(4x2-2x)
-4(x2+7)+7(x2-3)
-(x2y+4xy-8)+6(x2y+4xy-5)
41
(—x2-30x-19y)-(—x2-18x-30y)
55
11
-—(9k3+3k2+6)-—(3k3-3k2+2k)
43
(9k2+4k)+(5k2-9k+1)
(a2-5a-3b)+(2a2-a-5b)
8x2+(6x2-x-8)+(5x+9)
4y2+(6x2-y)+(3x2+5y2)
8
(4x2-2xy+—x)-(2x2-8xy+6x)
7
15
(—xy-6y2+3)+(x2+—xy-9y2+1)
86
85
(xy+—y-—)+(xy-x+8)
74
(y-5x-z2)-(8y+9x+2z2)
(6m2+m-9)-(3m+3n+8)
(4x2+5x+6)-4(2x2-3x)
-9(x2+2)-8(x2+7)
-(x2y+3xy+2)-7(x2y-5xy+4)
11
(—x2+23x-17y)-(—x2-17x+29y)
88
11
-—(4k3-6k2+8)-—(8k3+5k2-6k)
63
(6k2+9k)-(5k2+2k-8)
(a2-7a+b)-(7a2+6a-6b)
x2-(6x2-6x+6)-(6x-5)
2y2-(3x2-y)-(5x2+4y2)
1
(4x2+4xy+—x)+(x2+2xy+x)
8
17
(—xy+5y2-2)+(x2-—xy-2y2-4)
56
24
(xy-—y+—)+(xy+x-7)
33
(2y+3x+3z2)-(3y+7x+3z2)
(4m2+8m+8)+(9m-2n-5)
(x2-5x-9)+4(5x2-7x)
-2(x2-2)-7(x2+7)
-(x2y-2xy-7)-9(x2y-9xy-4)
66
(—x2-27x-15y)-(—x2-12x+21y)
77
11
-—(2k3-k2-2)-—(6k3-8k2+5k)
66
(4k2+5k)-(8k2+7k+5)
(7a2+9a+b)+(7a2+7a+b)