初一数学下册计算题天天练 43.docx
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初一数学下册计算题天天练43
-(x2y+3xy+7)-2(x2y-5xy-3)
11
(—x2+16x-12y)-(—x2+13x-15y)
88
11
-—(6k3+5k2-7)-—(6k3-9k2+9k)
66
(2k2+7k)+(6k2+3k-7)
(5a2-9a-6b)+(4a2+6a+8b)
6x2+(5x2+8x-6)-(5x-7)
7y2+(3x2+y)-(6x2-9y2)
1
(3x2-6xy-—x)+(6x2-9xy+7x)
8
11
(—xy+8y2+8)-(x2-—xy+3y2+4)
44
19
(xy+—y-—)-(xy+x-6)
38
(7y-9x-7z2)+(2y+4x-2z2)
(5m2-m+4)+(4m+4n+7)
(2x2-x-5)-5(4x2+6x)
-8(x2+1)-2(x2+8)
-(x2y+9xy-3)-3(x2y-4xy+6)
35
(—x2-21x+16y)-(—x2-10x-30y)
44
11
-—(8k3-6k2-9)+—(2k3+k2+7k)
26
(3k2+3k)-(7k2-k+5)
(3a2+3a+8b)-(2a2-2a-7b)
5x2-(4x2+9x-6)-(2x+4)
y2-(5x2-y)+(4x2+4y2)
8
(3x2+2xy-—x)-(2x2+2xy-2x)
7
93
(—xy+3y2-6)-(x2-—xy-8y2-9)
84
11
(xy+—y-—)+(xy-x-9)
55
(2y-6x+8z2)-(y-5x+9z2)
(6m2-m+5)+(4m+6n+4)
(9x2-x+1)+7(9x2-7x)
-8(x2-6)-6(x2+3)
-(x2y-6xy+5)-4(x2y-5xy-7)
61
(—x2+18x-11y)-(—x2+20x+11y)
77
11
-—(9k3+7k2-1)-—(7k3+6k2-8k)
65
(4k2-3k)+(6k2-6k+6)
(5a2+a+8b)+(5a2-7a+9b)
9x2+(x2-3x+7)+(6x+9)
7y2-(2x2+y)-(2x2+2y2)
1
(9x2+4xy+—x)+(x2-9xy-9x)
3
11
(—xy-5y2+3)+(x2+—xy-6y2-1)
88
26
(xy-—y+—)-(xy+x+7)
37
(8y-6x+7z2)+(8y+3x-8z2)
(7m2-9m+8)-(7m+5n+4)
(4x2-x-6)-5(8x2+7x)
-7(x2-4)-4(x2-7)
-(x2y-2xy+3)-5(x2y-7xy-9)
75
(—x2+15x-17y)+(—x2+10x+11y)
66
11
-—(4k3+k2-9)+—(9k3-9k2-1k)
45
(k2-9k)+(4k2-3k+4)
(2a2+3a+5b)-(4a2+6a-7b)
3x2+(4x2+7x-3)-(2x+1)
y2+(x2+y)-(8x2+y2)
1
(5x2-7xy+—x)-(7x2-3xy+2x)
7
11
(—xy+3y2+7)-(x2+—xy-3y2-2)
67
25
(xy+—y-—)+(xy-x+5)
36
(3y-3x-8z2)-(3y-8x-z2)
(8m2-9m-2)+(9m-9n+5)
(3x2+4x-6)-5(x2+2x)
-4(x2+1)+8(x2+9)
-(x2y+8xy-9)-9(x2y-9xy+6)
11
(—x2-19x+10y)+(—x2-12x-19y)
55
11
-—(5k3+8k2+4)-—(4k3+2k2-8k)
64
(k2+8k)+(8k2+2k+8)
(8a2+9a-3b)-(7a2-8a+b)
4x2+(9x2-8x+5)-(3x-3)
7y2-(9x2+y)-(2x2-3y2)
5
(6x2+9xy-—x)+(x2+4xy+4x)
6
54
(—xy+9y2-5)+(x2-—xy+2y2-1)
63
21
(xy+—y+—)-(xy-x+3)
38
(y-4x+5z2)-(9y-9x+9z2)
(4m2+7m-7)-(9m-8n-2)
(8x2-4x+5)+6(5x2-3x)
-5(x2-1)+2(x2+7)
-(x2y-9xy+8)-9(x2y-7xy-2)
66
(—x2+27x+11y)+(—x2+10x-15y)
55
11
-—(7k3+4k2+7)+—(k3+8k2-8k)
42
(2k2+4k)-(k2-7k+7)
(6a2+9a+b)-(2a2+5a-3b)
9x2-(8x2-8x+8)-(4x+3)
8y2-(8x2+y)+(6x2+7y2)
8
(3x2-xy+—x)+(x2-9xy-5x)
7
15
(—xy+3y2-4)-(x2+—xy-7y2-7)
86
41
(xy-—y-—)+(xy+x+2)
58
(7y+5x-7z2)-(3y-3x-4z2)
(9m2-m-6)-(3m-6n-5)
(3x2+9x-3)+5(4x2+3x)
-3(x2+5)-5(x2-6)
-(x2y+8xy-9)-4(x2y+2xy-3)
79
(—x2+23x+18y)+(—x2-13x+13y)
88
11
-—(4k3+2k2+9)+—(5k3+5k2-1k)
25
(3k2-8k)+(3k2-4k+8)
(6a2-3a+9b)+(9a2+9a+2b)
2x2+(2x2-5x+5)+(5x-1)
5y2+(6x2+y)-(x2+6y2)
6
(7x2+5xy+—x)-(x2-2xy-6x)
5
18
(—xy-9y2-5)-(x2-—xy+4y2-2)
77
16
(xy+—y-—)+(xy-x-5)
65
(2y-3x+2z2)+(y-2x-8z2)