how do you find a function of zero??? for ex) y=x(x+2)(x+3)
I am not sure what you mean but the zeros or the roots are the x intercepts which is where y=0
No y will equal zero if any one of those factors =0
ie
x=0 or x+2=0 or x+3=0
I dont know how but i THINK the answer is 6 if y=0