SOLUTION: Factor the four term polynomial by grouping 1.) x^3+3x^2+9x+27 2.) 3x+9+xy+3y

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Question 502861: Factor the four term polynomial by grouping
1.) x^3+3x^2+9x+27
2.) 3x+9+xy+3y

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
I'll do the first one to get you started.

Start with the given expression


Group the terms in two pairs


Factor out the GCF out of the first group. Factor out the GCF out of the second group


Since we have the common term , we can combine like terms


So factors to


In other words,

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