Can someone show me how to solve 8=n + 3 over -2

n=-19

Step-by-step explanation:

You have to multiply each side by -2. This cancels out the division. Then you subtract 3 from both sides. Then you get the answer. Hope this helps!

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