Value of the discriminant k > 0

the value of the discriminant can be greater than 0, such as 1-10

the value of the discriminant can be greater than 0, such as 1-10

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

pls ask