(x+1)/(x-1)>=0
x>1或者x<=-1
(3x+1)/(2x-1)<2
x>3或者x<1/2
2/x>-1
x<-2或者x>0
(2x^2-x+1)/(2x+1)>0
x>-1/2
x^2-2x>2x^2+2
无解
x^2/2-x/3+1/5>=0
任意解
x^2-x+2<0
无解
(2x-3)/(x+1)<0
-1
1/(x+2)<=3
x<-10/3或者x>-3
2x^2+x<0
-1/2
x^2-3x-18<=0
-3<=x<=6
-x^2+x>=3x+1
x= - 1
x(x+9)>3(x-3)
x≠ - 3
1
到底您是要解那些啊?全部?
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