SOLUTION: Factor by grouping I don't get this. Can you help me? 3x + 3y + ax + ay

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Question 115383: Factor by grouping I don't get this. Can you help me?
3x + 3y + ax + ay

Answer by prabhjyot(165) About Me  (Show Source):
You can put this solution on YOUR website!
3x + 3y + ax + ay
3(x+y)+a(x+y)
taking(x+y) comman
(x+y)(a+3)