How would you find the zeros of the function by rewriting the function in intercept form? ex: y=x^2-12x+32

The way i do it is factor x^2-12x+32 into (x-8)(x-4) then set each of those to zero which would look like 0=x-8 and 0=x-4. Then solve each equation and your answers would be x=8 and x=4

Iam guessing c. or d.