七年级数学下册整式的加减法计算题 837.docx
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七年级数学下册整式的加减法计算题837
(2a2+a-6b)+(8a2-4a+b)
7x2+(8x2-3x+2)-(8x+6)
9y2+(9x2-y)+(4x2+2y2)
3
(x2-9xy+—x)-(7x2-6xy+9x)
4
14
(—xy-6y2+7)+(x2+—xy+7y2+8)
83
21
(xy+—y-—)+(xy+x+5)
36
(y+7x+8z2)+(7y-4x+2z2)
(8k2-8k)-(8k2+5k+2)
(a2-5a+b)-(3a2+8a+3b)
x2+(2x2+9x-4)-(6x+1)
5y2+(6x2+y)-(9x2+y2)
1
(9x2-8xy-—x)-(8x2-7xy+8x)
8
81
(—xy-9y2-1)+(x2-—xy-8y2-8)
74
13
(xy-—y+—)+(xy+x+4)
44
(7y+2x+2z2)-(6y-3x+5z2)
(2k2-9k)-(6k2-8k+8)
(7a2+7a+8b)+(8a2+3a+5b)
9x2+(7x2-5x-2)-(6x+2)
6y2+(3x2-y)+(x2+8y2)
1
(5x2-xy-—x)-(2x2+9xy-x)
4
11
(—xy+2y2-3)+(x2+—xy-2y2+9)
73
81
(xy+—y-—)-(xy-x-1)
75
(7y+9x-5z2)+(6y+8x+6z2)
(6k2-5k)+(8k2-3k-9)
(8a2-3a-4b)+(7a2-7a+2b)
7x2-(4x2-5x+2)+(9x+5)
9y2+(6x2-y)-(7x2-y2)
6
(9x2+4xy-—x)-(8x2-9xy-4x)
7
51
(—xy-7y2-9)+(x2+—xy+9y2+2)
65
95
(xy+—y-—)+(xy-x-6)
86
(3y-3x+9z2)-(y+2x-5z2)
(9k2+2k)-(3k2+5k+9)
(8a2-5a-9b)-(9a2+6a-4b)
5x2-(4x2+3x-2)-(5x+9)
5y2-(4x2+y)-(3x2-3y2)
3
(x2-xy+—x)+(2x2+5xy+2x)
4
77
(—xy-5y2+8)+(x2-—xy+6y2-5)
88
32
(xy+—y+—)+(xy-x-9)
43
(8y-8x+z2)+(5y-2x+5z2)
(8k2-6k)+(4k2+9k-7)
(4a2-6a+3b)+(9a2-2a-b)
5x2+(2x2-4x-6)+(8x-6)
4y2-(5x2-y)-(x2+y2)
1
(8x2+2xy-—x)-(7x2-7xy+8x)
4
55
(—xy-y2+9)+(x2-—xy-6y2-6)
66