七年级数学下册整式的加减法计算题 540.docx
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七年级数学下册整式的加减法计算题540
(5m2-8m+7)-(3m+2n-7)
(3x2-5x+4)+8(2x2-8x)
-6(x2+8)-8(x2-2)
-(x2y-6xy+9)-9(x2y-6xy-8)
15
(—x2+28x-15y)-(—x2+18x+29y)
44
11
-—(9k3-5k2-6)-—(7k3+k2+7k)
42
(6m2-6m-2)-(2m+2n-6)
(2x2-3x+8)-8(2x2+3x)
-6(x2+6)-3(x2+5)
-(x2y+7xy+5)-9(x2y+6xy-9)
41
(—x2+15x-19y)+(—x2-12x+15y)
33
11
-—(8k3-6k2-5)-—(k3+8k2+5k)
65
(3m2-4m+9)+(4m-3n-6)
(6x2-2x+9)-5(9x2-7x)
-5(x2+6)+4(x2-2)
-(x2y-8xy+6)+2(x2y-8xy-8)
51
(—x2-25x-13y)-(—x2-16x+13y)
44
11
-—(7k3+5k2+5)-—(k3+6k2+9k)
45
(2m2+6m-9)-(8m-2n+2)
(2x2+6x-5)-8(6x2+6x)
-9(x2+2)-9(x2-2)
-(x2y-4xy-3)+9(x2y-5xy+3)
51
(—x2+29x+15y)+(—x2-17x+12y)
44
11
-—(2k3+6k2+9)-—(8k3+3k2+3k)
62
(5m2+2m+3)+(4m+5n-3)
(7x2-9x-1)-9(6x2-6x)
-7(x2-7)+5(x2+2)
-(x2y-3xy+7)-6(x2y-6xy-4)
99
(—x2-16x-11y)-(—x2+17x-28y)
88
11
-—(5k3-5k2+9)-—(3k3-k2-5k)
45
(5m2-3m+7)-(8m-n-9)
(6x2-9x-2)+9(9x2-x)
-8(x2+5)-6(x2-2)
-(x2y+5xy+6)-9(x2y+9xy+4)
91
(—x2-22x-14y)+(—x2+16x+12y)
88
11
-—(5k3+2k2+9)-—(7k3-3k2-5k)
62
(5m2+3m-7)+(m-6n+5)
(3x2+7x-4)+2(7x2-2x)
-6(x2+3)-2(x2-2)
-(x2y+8xy-8)-9(x2y+2xy+5)
71
(—x2+20x-10y)+(—x2-10x+14y)
66
11
-—(k3-8k2+1)+—(k3-4k2+5k)
22
(6m2+6m+5)+(2m-9n-4)
(5x2-3x+6)+2(5x2-3x)
-7(x2-7)-5(x2+9)