七年级数学下册整式的加减法计算题 92.docx
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七年级数学下册整式的加减法计算题92
3
(3x2+2xy-—x)+(4x2+7xy+3x)
4
11
(—xy-5y2-3)-(x2-—xy-3y2-5)
75
61
(xy+—y-—)+(xy+x+3)
56
(4y+6x-8z2)+(6y+5x-5z2)
(2k2-2k)-(7k2+4k-3)
(2a2+2a+7b)+(2a2-a-6b)
6x2+(8x2+x+7)+(2x-5)
5y2-(4x2+y)-(x2-6y2)
5
(4x2-xy+—x)+(7x2+3xy+3x)
4
84
(—xy+9y2+1)-(x2+—xy+7y2+9)
73
11
(xy+—y-—)-(xy+x+6)
64
(9y+8x+5z2)-(4y+6x+9z2)
(2k2-6k)-(6k2-7k-2)
(7a2-5a+8b)-(a2+8a-b)
4x2+(7x2+9x+4)+(9x+6)
6y2-(6x2-y)-(2x2+4y2)
1
(x2-8xy-—x)-(5x2-4xy-3x)
5
21
(—xy-7y2+5)+(x2+—xy+6y2-2)
35
61
(xy-—y+—)-(xy+x+5)
54
(9y-7x-4z2)-(y+4x+9z2)
(6k2-k)+(k2-2k-3)
(5a2+5a+8b)+(2a2+5a-7b)
7x2-(8x2-8x-9)-(x-8)
y2+(x2-y)+(8x2+y2)
1
(8x2+3xy+—x)-(3x2-5xy+6x)
5
51
(—xy+9y2+7)-(x2+—xy+9y2+6)
47
41
(xy+—y-—)-(xy-x-5)
58
(7y+6x+3z2)+(8y-2x-5z2)
(2k2-9k)-(7k2+3k-6)
(8a2-4a+4b)+(2a2+8a+4b)
4x2+(x2-4x+9)-(6x+9)
7y2-(2x2-y)+(4x2-9y2)
5
(x2+6xy-—x)+(2x2-4xy-6x)
6
11
(—xy+2y2-2)+(x2+—xy+y2+8)
78
31
(xy+—y-—)-(xy-x+9)
45
(6y-6x-z2)-(5y+6x+3z2)
(6k2+2k)-(7k2+6k-9)
(5a2-6a-b)+(5a2-3a-6b)
7x2-(3x2-5x-3)+(4x+3)
4y2+(5x2+y)-(7x2-7y2)
2
(4x2+xy-—x)+(8x2+4xy+x)
3
81
(—xy-2y2+9)-(x2-—xy-y2-3)
77
72
(xy+—y-—)-(xy+x-2)
63
(7y+2x+5z2)-(2y-7x-2z2)
(3k2-6k)+(k2-4k-8)