SOLUTION: I have been reviewing factoring trinomials. I am kind of stuck on this problem. I got an answer and it is correct according to the book, but I just want to know how to check my ans

Question 422912: I have been reviewing factoring trinomials. I am kind of stuck on this problem. I got an answer and it is correct according to the book, but I just want to know how to check my answer. This all falls under factoring compleely.
b^4-3b^3-10b^2
the answer is b^2(b+2)(b-5). How do I go about checking this sort of problem? I am not sure what to do with the gcf when I am trying to check.
Thanks
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

.....factor out common term
......now factor .....replace with
....group first two and second two terms
......factor out from and
from

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