七年级数学下册整式的加减法计算题 542文档格式.docx
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33
(—x2-15x-13y)-(—x2+12x+16y)
44
11
-—(6k3-9k2-5)+—(8k3-2k2-1k)
66
(3m2+5m-2)+(6m+n+7)
(5x2-5x+6)+3(6x2+4x)
-4(x2-5)+4(x2+9)
-(x2y-6xy-8)-7(x2y+8xy+6)
81
(—x2+17x+12y)+(—x2-15x-27y)
77
-—(k3+4k2-9)-—(2k3-3k2+2k)
26
(9m2+6m+2)+(6m+8n-7)
(2x2-x+3)-7(3x2+9x)
-6(x2+4)+9(x2-8)
-(x2y-4xy-3)+5(x2y+7xy+8)
75
(—x2+22x+13y)-(—x2-17x+26y)
-—(4k3+8k2-8)+—(9k3+k2-4k)
46
(9m2+9m-9)+(6m-3n-6)
(x2+x-3)+3(3x2-8x)
-2(x2+7)+6(x2-8)
-(x2y+5xy+3)+2(x2y+5xy+6)
71
(—x2-12x+19y)+(—x2+12x+18y)
88
-—(7k3+6k2-4)-—(9k3+6k2+9k)
(m2+6m-2)+(6m+5n+7)
(8x2-7x+1)-3(7x2+9x)
-4(x2-4)-4(x2-8)
-(x2y-9xy+2)-9(x2y-7xy+7)
41
(—x2+28x-13y)-(—x2-11x+23y)
55
-—(8k3-7k2-8)-—(k3+7k2+1k)
(m2+3m+4)+(6m+6n-4)
(4x2+6x+5)+5(2x2+9x)
-8(x2+2)+7(x2-7)
-(x2y+2xy-7)-8(x2y+7xy-3)
(—x2-16x+16y)+(—x2+12x-11y)
-—(8k3-k2+2)+—(5k3+7k2+9k)
63
(4m2+6m+2)-(9m+n-6)
(5x2-3x-2)-4(5x2-5x)
-5(x2+4)+6(x2-4)
-(x2y+2xy+3)-5(x2y-7xy-4)
14
(—x2+20x+17y)+(—x2+16x+27y)
-—(4k3-2k2-2)-—(9k3-2k2+4k)
24
(8m2+9m+6)+(5m+2n-5)
(4x2-8x+6)+3(5x2-x)
-9(x2+9)-3(x2+5)