Question

помогите решить

x-x^2<0;
7x-x^2>=0;
5x-x^2>0;

Answer 1

х-х^2<0

x<x^2

0<x

x>0

7x-x^2>=0

7x>=x^2

7>=x

x<=7

5x-x^2>0

5x>x^2

5>x

x<5