SOLUTION: How do I factor completely -3 + 2y + 21y^2

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Question 851314: How do I factor completely -3 + 2y + 21y^2
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 21y^2 + 2y - 3 

(7y + 3)(3y-1) = 21y^2 + 2y - 3

Check with FOIL

F	First terms

O	Outside terms

I	Inside terms

L	Last terms