x^3-25x=0,
x(x^2-25)=0,
x(x+5)(x-5)=0,
x_1=0,
x+5=0, x_2=-5,
x-5=0, x_3=5;
0^2+(-5)^2+5^2=50
х=0
х=-5
х=5
x^3-25x=0,
x(x^2-25)=0,
x(x+5)(x-5)=0,
x_1=0,
x+5=0, x_2=-5,
x-5=0, x_3=5;
0^2+(-5)^2+5^2=50
x^3-25x=0,
x(x^2-25)=0,
x(x+5)(x-5)=0,
х=0
х=-5
х=5
0^2+(-5)^2+5^2=50