Rozwiaz rownania i nierownosci kwadratowe.
x^2-5x<0
x^2
5>0
-(2x+1)<0
x(x-5)<0/(x-5)
x<0
-2x-1<0
-2x<1/(-2)x>-1/2
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x^2-5x<0
x(x-5)<0/(x-5)
x<0
-(2x+1)<0
-2x-1<0
-2x<1/(-2)
x>-1/2