SOLUTION: Explain how to reverse FOIL, when factoring a polynomial of the form ax^2 + bx + c.When (a) is not equal to 1. Give an example thank you

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: Explain how to reverse FOIL, when factoring a polynomial of the form ax^2 + bx + c.When (a) is not equal to 1. Give an example thank you      Log On


   

Question 154267: Explain how to reverse FOIL, when factoring a polynomial of the form ax^2 + bx + c.When (a) is not equal to 1. Give an example
thank you
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3x^2-7x+2
the factors of 3=1,3 & -1,-3
the factors or 2=1,2 & -1,-2
now find the sum of the products of each group of factors thus:
1*1+3*2=7
1*2+1*3=5
1*-1+3*-2=-1-6=-7 eureka this is the combination.
(3x-1)(x-2)