SOLUTION: Factor: (15x)y + 25x + 27y + 45 I am having alot of trouble with factoring so please explain step by step how this is done. The examples in the textbook are hard to follow becau

Question 39805This question is from textbook
: Factor: (15x)y + 25x + 27y + 45
I am having alot of trouble with factoring so please explain step by step how this is done. The examples in the textbook are hard to follow because I don't know how each step has been arrived at. THANKS! This question is from textbook

Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
We factor this by a technique known as grouping...we will group them in pairs and factor them separately...so from
15xy + 25x + 27y + 45 we get
(15xy + 25x) + (27y + 45) =
5x(3y + 5) + 9(3y + 5)
did you get that?
Now notice there is a common factor in each, that is the 3y + 5, so I can pull it out and we're done...
(3y + 5)(5x + 9)
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