Answer:
x=-5;-3;2
Step-by-step explanation:
all the details are in the attached picture (the answers are marked with red colour).
1) to determine the possible roots;
2) to check the possible roots, then to stop when the first one is found (it is 2);
3) to perform division of polynoms, then to re-write the given equation in comfortable form;
4) to calculate other roots.
Note, the suggested solution is not the shortest way and not the only one.
P.S. make the design according local requirements.
