Question

what are the zeros of the function y=x(x+2)(x+5)

Answer 1

The functions zero when one of your factoring is zero... so if you set each to zero you will get it... since it is a third order equation you know there are three....

X=0
X+2=0. X=-2
X+5=0 x=-5,

So the function is 0 when x= 0, 2- , 5 -....