What is an apparent solution

an apparent solution that must be rejected because it does not satisfy the original equation.

Step-by-step explanation:

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

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right