Question 714922
x^3 - 10x^2 + 25x = 0 


x(x^2 - 10x + 25) = 0 


x(x - 5)(x - 5) = 0 


x = 0 or x-5 = 0 or x-5 = 0


x = 0 or x = 5 or x = 5


So the solutions are x = 0 or x = 5 or x = 5


You can say that the unique roots are 0 and 5, where 0 is a single root and 5 is a double root.