七年级数学下册整式的加减法计算题 37.docx
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七年级数学下册整式的加减法计算题37
(6a2-4a+5b)-(8a2-7a+5b)
x2+(4x2+x+2)+(2x+4)
9y2+(2x2-y)-(2x2-9y2)
1
(5x2-3xy-—x)-(3x2+7xy-7x)
5
15
(—xy+y2+9)+(x2+—xy-7y2+4)
54
16
(xy-—y+—)+(xy+x+9)
57
(6y-x-z2)+(6y-2x+3z2)
(k2+9k)-(5k2+8k-6)
(5a2-7a+3b)+(4a2+8a+3b)
9x2+(8x2-4x-4)+(2x+7)
y2-(8x2+y)-(9x2-9y2)
1
(4x2+4xy+—x)+(6x2+9xy-6x)
5
54
(—xy-4y2-2)-(x2-—xy+9y2+6)
43
11
(xy+—y-—)+(xy+x-9)
64
(8y-3x+5z2)+(5y-9x+7z2)
(9k2-8k)-(7k2-6k-3)
(7a2-4a+7b)-(6a2+9a-5b)
2x2-(3x2+4x-6)-(8x+5)
5y2-(x2+y)+(4x2+4y2)
1
(3x2+xy-—x)+(2x2+3xy-2x)
6
47
(—xy+y2-6)+(x2+—xy+2y2+4)
56
81
(xy+—y+—)+(xy+x+1)
76
(2y-9x-8z2)+(4y+7x+6z2)
(8k2+2k)+(6k2+3k+4)
(2a2+8a-6b)-(8a2-9a-5b)
2x2-(x2+3x+5)+(5x+3)
3y2-(9x2+y)-(8x2-6y2)
1
(4x2+9xy+—x)-(5x2-9xy-8x)
3
54
(—xy-y2+4)+(x2-—xy+4y2-7)
45
71
(xy+—y-—)+(xy+x+5)
87
(8y+x+3z2)-(y+3x+7z2)
(2k2-4k)+(3k2-k+3)
(3a2-6a-3b)+(6a2+a-8b)
2x2+(7x2+8x+7)+(3x-7)
5y2-(6x2-y)-(8x2+8y2)
1
(3x2+6xy-—x)+(4x2+9xy+3x)
3
56
(—xy-4y2-7)-(x2-—xy-4y2-6)
65
55
(xy-—y+—)+(xy-x+4)
44
(9y-7x+3z2)+(y-9x-2z2)
(2k2-3k)-(4k2+6k+2)
(7a2+9a-6b)+(8a2+a+b)
8x2-(9x2+6x-8)+(9x-9)
3y2+(6x2+y)-(5x2-8y2)
1
(3x2+3xy-—x)-(3x2-4xy+3x)
7
19
(—xy-3y2-1)-(x2+—xy-4y2+5)
88