1)f(x)=x^2/(x-3)^2
0=x^2/(x-3)^2
x=0
2)f(x)=2x^3/x^2-1
0=2x^3/x^2-1
x=1 дробь 2
3)f(x)=x^2-6x+9/(x-1)^2
f(0)=0^2-6x•0+9/(0-1)^2
f(0)=0^2-6•0+9/(-1)^2
f(0)=0-0+9/1
(f)0=9
4)f(x)=x^2/x^3-1
0=x^2/x^3-1
x=1
1)f(x)=x^2/(x-3)^2
0=x^2/(x-3)^2
x=0
2)f(x)=2x^3/x^2-1
0=2x^3/x^2-1
x=1 дробь 2
3)f(x)=x^2-6x+9/(x-1)^2
f(0)=0^2-6x•0+9/(0-1)^2
f(0)=0^2-6•0+9/(-1)^2
f(0)=0-0+9/1
(f)0=9
4)f(x)=x^2/x^3-1
0=x^2/x^3-1
x=1