七年级数学整式的加减法计算题大全 343.docx
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七年级数学整式的加减法计算题大全343
(4y+6x-5z2)+(9y+2x-4z2)
(9m2-9m+5)-(m+9n-6)
(x2+2x+6)+8(9x2+3x)
-2(x2-6)-8(x2+8)
-(x2y-6xy-3)-2(x2y+2xy-3)
41
(—x2+28x+13y)-(—x2-12x-14y)
55
11
-—(k3+3k2+1)-—(7k3+k2+3k)
43
(5k2-6k)-(4k2-k-9)
(a2+6a-8b)-(4a2+9a-3b)
4x2+(x2-5x-6)+(4x-1)
3y2+(2x2+y)+(9x2+9y2)
6
(2x2+3xy+—x)-(4x2+4xy+x)
7
91
(—xy-2y2+2)-(x2+—xy-y2-6)
88
15
(xy-—y-—)-(xy+x+8)
44
(6y+x-5z2)+(y+3x-z2)
(4m2-7m+8)-(8m+3n-4)
(4x2-6x-8)-4(2x2-6x)
-5(x2-6)+7(x2-2)
-(x2y-9xy+9)-4(x2y-6xy+3)
11
(—x2-15x+12y)+(—x2-14x+28y)
44
11
-—(4k3-4k2+5)-—(9k3+k2-4k)
64
(5k2+8k)+(7k2+3k+5)
(2a2-5a+6b)+(5a2-6a-5b)
6x2-(6x2-5x-9)+(5x-8)
7y2+(4x2+y)+(x2-8y2)
1
(5x2-5xy-—x)+(x2+5xy-6x)
7
26
(—xy-6y2-6)-(x2-—xy+2y2+8)
35
21
(xy-—y-—)-(xy-x+1)
37
(2y+3x+5z2)+(6y-5x-7z2)
(4m2+5m-3)-(4m-8n+5)
(3x2-8x+6)-6(9x2-x)
-6(x2-6)-5(x2+6)
-(x2y+4xy+5)+4(x2y-4xy-5)
16
(—x2-17x-19y)-(—x2-17x+14y)
77
11
-—(4k3-6k2-3)+—(k3+3k2+1k)
64
(8k2+6k)+(7k2+6k-8)
(5a2+6a+4b)-(8a2+6a-7b)
7x2+(x2-8x+1)+(3x-7)
9y2-(3x2+y)-(5x2-8y2)
1
(4x2-xy-—x)+(9x2+9xy-x)
5
81
(—xy-6y2+2)+(x2+—xy+7y2+9)
73
35
(xy-—y-—)+(xy-x+4)
46
(9y-5x+8z2)+(5y-x+3z2)
(7m2+6m-4)-(9m-4n-9)
(5x2-x+6)-5(3x2-6x)