Question 987566
f is shown in factored form.  x-intercepts are  -3 and -1.

<pre>
INTERVAL      {{{-infinity<x<-3}}}     {{{-3<x<-1}}}        {{{-1<x<infinity}}}
SIGN CHECK     (-)^2(-)^3         (+)^2(-)^3     (+)^2(+)^2
SIGN           (-)                (-)             (+)
</pre>

f changes signs and crosses the x-axis at  x=-1 but just touches the x-axis at x=-3.


{{{graph(300,300,-5,2,-3,3,(x+3)^2(x+1)^3)}}}