七年级数学下册整式的加减法计算题 565.docx
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七年级数学下册整式的加减法计算题565
-(x2y-8xy-6)+6(x2y+6xy-9)
17
(—x2-26x-16y)-(—x2-11x-15y)
88
11
-—(7k3-3k2-8)+—(2k3+6k2+2k)
62
(6m2+7m+1)-(m+6n+9)
(9x2+x+7)-7(7x2-2x)
-5(x2-1)+3(x2+9)
-(x2y+3xy-3)+2(x2y+2xy+4)
11
(—x2-22x+15y)-(—x2+15x-18y)
66
11
-—(5k3+2k2-2)-—(8k3-7k2+5k)
45
(5m2-2m+3)-(m-2n-8)
(5x2-2x-8)+6(2x2-9x)
-3(x2+5)+2(x2+5)
-(x2y-5xy+7)+8(x2y-8xy-9)
44
(—x2-13x+13y)+(—x2+12x+29y)
33
11
-—(6k3+6k2-2)+—(5k3-6k2+6k)
44
(8m2-9m+6)+(m+n-5)
(6x2+8x+9)+5(5x2+8x)
-4(x2-1)-4(x2-4)
-(x2y+2xy+2)+3(x2y+8xy+6)
91
(—x2-29x-18y)+(—x2-14x+24y)
88
11
-—(2k3-2k2-8)+—(k3-6k2+9k)
45
(4m2+2m+4)+(2m-6n-8)
(6x2-5x-2)+7(2x2+5x)
-3(x2+5)+6(x2+4)
-(x2y-5xy+2)-2(x2y-8xy+6)
71
(—x2+20x-13y)-(—x2-16x-30y)
66
11
-—(5k3-9k2+8)-—(3k3-7k2-2k)
46
(3m2+4m+7)-(m+9n-8)
(x2+3x+8)-6(4x2+3x)
-2(x2+9)-8(x2-4)
-(x2y+9xy+9)-2(x2y+3xy-5)
18
(—x2-25x-16y)-(—x2-16x-17y)
77
11
-—(7k3+k2+5)-—(5k3+8k2-1k)
24
(8m2+7m-2)+(6m+6n-5)
(7x2+7x+8)-8(x2+5x)
-6(x2+6)+9(x2-3)
-(x2y-4xy-7)+8(x2y+3xy+2)
18
(—x2+21x-17y)+(—x2-17x-16y)
77
11
-—(2k3-9k2-2)-—(9k3-2k2-3k)
44
(6m2+6m-4)-(9m-3n+2)
(2x2-5x-2)+6(6x2+7x)
-5(x2+8)-3(x2+6)
-(x2y+7xy+7)+8(x2y-2xy-7)
77
(—x2+14x+14y)+(—x2+13x-18y)
88
11
-—(9k3-9k2+6)+—(6k3-2k2+9k)
22