SOLUTION: please show me how to factor a polynomial completely thank you -36a2b+21ab2-3b3

Question 183921: please show me how to factor a polynomial completely thank you

-36a2b+21ab2-3b3

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Factor completely: Note: You can indicate exponents by use of the caret symbol (^). Example - a-squared would look like a^2
First factor out those factors that are common to each term, in this case, I would factor out -3b thus:
Notice the change of sign on each factor when you factor the -3.
Now to factor the trinomial in parentheses, first look at the leading term, (), and note that this can be factored as:
or
or
or
Now notice the middle term, The only way to factor this is:
and you can get by adding and the last term can only be factored as
So putting it all together, you get:

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