x-3(x-1)
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x-3(x-1)
x-3(x-1)
x-3(x-1)
x-3x 3<2
-2x<-1
2x>1
x>0.5
有负号要换号(大于换成小于,小于换成大于)
x-3x+3<2
-2x<-1
x>1/2
x>二分之一!谢谢
x-3x+3<2
2x>1
x>2分之1
x>0.5
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/X-3/-/X-1/
(3x/x-1)
x-3(x-1)
| X+1 |>| X-3 |
x+3/x-1
(x +1)(x-3)
(x+3)(x-1)
|x+1|-|x-3|
(x+1)(x-3)
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
[x(x+1)+x平方(x-1)]+(-3x)
x{x+1}{x-1}}x-2}{x-3}-40
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x^5-x^4+x^3-x^2+x-1
|x+1|-|x|+|x-2|-|-x+3|已知x+2