七年级数学下册整式的加减法计算题 562.docx
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七年级数学下册整式的加减法计算题562
(m2-m+1)+(4m+2n+3)
(3x2+2x+4)+9(7x2-6x)
-4(x2-6)-2(x2+1)
-(x2y+6xy-4)-6(x2y-8xy+6)
33
(—x2-13x+19y)-(—x2-17x-15y)
44
11
-—(7k3-5k2+7)+—(4k3+k2-5k)
22
(3m2-3m+5)-(6m-8n+7)
(3x2-x-9)+8(4x2+7x)
-7(x2-4)+6(x2-8)
-(x2y-8xy-3)-2(x2y-3xy+3)
35
(—x2-13x+16y)-(—x2+11x-24y)
44
11
-—(9k3-6k2-8)+—(5k3+9k2-7k)
65
(4m2-5m-8)-(7m-9n-1)
(3x2-2x-7)-5(9x2+5x)
-5(x2+4)-8(x2+4)
-(x2y+6xy+4)-8(x2y-8xy-2)
21
(—x2+26x+19y)+(—x2-13x-13y)
33
11
-—(2k3+2k2+6)+—(3k3+k2+9k)
22
(m2+6m-8)+(3m-4n-8)
(8x2+8x-8)+7(6x2+5x)
-4(x2-1)-4(x2-1)
-(x2y-5xy-8)-4(x2y-6xy+9)
21
(—x2+18x+13y)+(—x2-12x-18y)
33
11
-—(7k3+5k2-8)+—(7k3+3k2+5k)
26
(4m2+5m-3)+(3m+5n+7)
(8x2-7x+5)-4(2x2+5x)
-3(x2-2)+6(x2-5)
-(x2y+8xy+8)-6(x2y-7xy+3)
15
(—x2+16x-14y)-(—x2-14x-25y)
66
11
-—(4k3+2k2-4)-—(3k3-7k2-9k)
44
(m2-8m+9)+(4m+6n-9)
(7x2-4x-2)+8(7x2+x)
-2(x2-8)-3(x2-5)
-(x2y+2xy-8)+6(x2y-4xy-9)
11
(—x2+28x+14y)+(—x2-16x-15y)
77
11
-—(7k3-4k2+1)+—(6k3-7k2-5k)
42
(5m2-9m+5)+(7m-5n+3)
(x2-6x+8)-8(6x2-2x)
-2(x2-1)+5(x2+2)
-(x2y+8xy+9)+3(x2y-2xy+3)
61
(—x2+12x+11y)-(—x2-13x-11y)
77
11
-—(5k3-2k2+2)-—(3k3-2k2+5k)
66
(m2-9m+7)+(3m-2n-7)
(9x2+6x+8)+8(9x2-9x)
-4(x2+9)+8(x2-6)