SOLUTION: Factor completely. 3x^2 + 4x � 15

Question 126422: Factor completely. 3x^2 + 4x � 15
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

I do this just by trying factors of 15 and
moving the factors anf the + and - signs
around until it works
If the equation were
I would need big numbers, so I'd try 15 and 1 for
factors of 15
works
The more you play with them, the easier they get
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