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Factoring (Foil)

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2 Answers

15x^3-25x^2+10
 
So you are going to pull out a 5 from all the terms
 
Like so:
 
5(3x^3-5x^2+2) 
 
then you are done because you nothing else to pull out or factor out
15 X^3 - 25X^2 +10 =
 
5 (3 X ^3  - 5X^2 +2 ) =
 
 5 ( 3 X^3 - 3X^2 - 2X^2 + 2)
 
 
5 [ 3X ( X^2 - 1) - 2 ( X^2 - 1)] =
 
5 ( X^2 -1 ) ( 3X - 2) =
 
5 ( X +1) ( X -1) ( 3X - 2)