Question 1113975
<pre>
-2   |   1   3   -30   -124   -120
     |       -2  -2    64      120
     |-------------------------------
        1   1    -32   -60     0
</pre>


Next, break into factors for {{{x^3+x^2-32x-60}}}.
You know there is another root of -2 because given was "multiplicity 2".


Synthetic division on the above dividend will give  quotient {{{x^2-x-30}}} and the two previous factors were  {{{x+2}}} and {{{x+2}}}.


Factorization of {{{x^2-x-30}}} is easily done:
{{{(x+5)(x-6)}}}



Entire factorization is then  {{{(x+2)^2*(x+5)(x-6)}}}.