七年级数学下册整式的加减法计算题 287Word格式.docx
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11
-—(8k3+4k2-7)+—(4k3-2k2+1k)
(6m2-2m-2)+(7m+n+9)
(8x2+3x+1)-9(9x2-x)
-2(x2-3)-5(x2+8)
-(x2y-6xy+5)-8(x2y-3xy-8)
51
(—x2+18x-18y)-(—x2-16x-17y)
44
-—(5k3+k2+2)+—(6k3+4k2-9k)
62
(5m2+7m+8)-(9m+5n+4)
(6x2+x-5)+5(9x2-9x)
-5(x2+5)-8(x2+2)
-(x2y+7xy-6)+3(x2y-7xy-2)
31
(—x2+23x+13y)+(—x2-15x+28y)
-—(3k3-7k2-8)+—(4k3-2k2-6k)
24
(4m2+m+1)+(5m-7n+4)
(3x2-3x-3)+6(3x2+3x)
-3(x2-8)+5(x2+2)
-(x2y+7xy-6)+3(x2y+3xy+8)
17
(—x2-13x+19y)-(—x2-12x-14y)
88
-—(3k3+7k2+9)+—(5k3-k2+3k)
(6m2+2m-6)-(2m-6n+8)
(5x2+4x+2)+8(7x2+8x)
-8(x2-3)+5(x2+8)
-(x2y+3xy-2)+4(x2y+4xy+6)
55
(—x2+21x-17y)+(—x2-20x+11y)
-—(2k3-3k2+5)-—(2k3+9k2-2k)
63
(4m2+2m+7)-(m-3n+3)
(6x2-6x+1)-9(x2+2x)
-4(x2+7)+8(x2+1)
-(x2y-7xy+6)-8(x2y-9xy+5)
16
(—x2-16x-10y)-(—x2+16x-13y)
-—(7k3-2k2+6)-—(3k3-6k2-5k)
25
(2m2+7m-8)+(3m-8n-3)
(2x2-8x-3)+7(7x2-2x)
-7(x2+6)+6(x2+2)
-(x2y+8xy+4)-3(x2y-4xy-3)
(—x2-13x+12y)-(—x2+20x+20y)
-—(k3-3k2+4)+—(4k3+4k2+6k)
23
(6m2+5m-5)-(7m+5n+9)
(2x2+6x+1)-4(x2+6x)
-4(x2-4)+8(x2-5)
-(x2y-3xy+3)-4(x2y+8xy-7)
19
(—x2+30x-19y)+(—x2-17x-23y)
-—(4k3-6k2+1)+—(2k3+k2+3k)