dota2大圣地图:(4/x-2)+(x+2/2-x)=?
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1、(4/x-2)+(x+2/2-x)=?
2、(xy-x^2)除以x-y/x+y
3、x^2/x-2+4/2-x
4、(a/a-b-b/b-a)*(a-b)^2
5、(x-1/x-y)^2-(x+1/x-y)^2
6、当1<x<2时化简
|x-1|/1-x-x/|x|-|x-2|/2-x
到底哪个对啊?
2、(xy-x^2)除以x-y/x+y
3、x^2/x-2+4/2-x
4、(a/a-b-b/b-a)*(a-b)^2
5、(x-1/x-y)^2-(x+1/x-y)^2
6、当1<x<2时化简
|x-1|/1-x-x/|x|-|x-2|/2-x
到底哪个对啊?
1、(4/x-2)+(x+2/2-x)=?
答:x^2-4x+8
2、(xy-x^2)除以x-y/x+y
答: -x^2-xy
3、x^2/x-2+4/2-x
答: x+2
4、(a/a-b-b/b-a)*(a-b)^2
答: a^2-b^2
5、(x-1/x-y)^2-(x+1/x-y)^2
答: -4x/(x-y)^2
6、当1<x<2时化简
|x-1|/1-x-x/|x|-|x-2|/2-x
答: _3
1、(4/x-2)+(x+2/2-x)=-1
2、(xy-x^2)除以x-y/x+y =-x^2-xy
3、x^2/x-2+4/2-x =x+2
4、(a/a-b-b/b-a)*(a-b)^2 =a^2-b^2
5、(x-1/x-y)^2-(x+1/x-y)^2=-2x^2/(x-y)^2
6、当1<x<2时化简
|x-1|/1-x-x/|x|-|x-2|/2-x=-3
1,4/X-1
2,-X(X+Y)
3,0
4,-(A+B)(A-B)的平方
5,-4X/(X-Y)的平方
计算[(x-1)/(x-2)-(x-2)(x-3)-(x-3)/(x-4)+(x-4)(x-5)]/(2x-7)
谁会解这道题:(X-5)/(X-7)+(X-2)/(X-4)=(X-3)/(X-5)+(X-4)/(X-6)求X的值
已知x+1/x =4,则x^2/x^4+x^2+1
(x-4)(x-2)-(x-1)(x+3),其中x=-2/5
(4/x-2)+(x+2/2-x)=?
x^2/x-2+4/2-x =?
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方程(x+1/x+2)+(x+2/x+3)=(x+3/x+4)+(x+4/x+5)的解