What is 6 6/9- 5 7/9?

8/9

Step-by-step explanation:

6 6/9- 5 7/9

Solve ;

6 6/9- 5 7/9

= 60/9 - 52/9

= 8/9

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