The question is in the picture below

The missing value is .

Step-by-step explanation:

Divide the known denominator by its numerator.

Now multiply the quotient by the other numerator ().

or

First, find the factor by which the numerators have been multiplied.

Now, do the same for the denominators.

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