SOLUTION: How to make a polynomial Factoring & Decomposition of this: x^2 + x - 6 The answer is (x + 3) (x -2) I want to know the method please. Thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: How to make a polynomial Factoring & Decomposition of this: x^2 + x - 6 The answer is (x + 3) (x -2) I want to know the method please. Thank you      Log On


   

Question 536849: How to make a polynomial Factoring & Decomposition of this:
x^2 + x - 6
The answer is (x + 3) (x -2)
I want to know the method please.
Thank you
Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
To factor it use reverse foil. When the polynomial is ax^2 + bx - c the factors will be (x+d)(x-e) where d-e=b and d*e=c.


3*2=6 and 3-2=1.


So the answer is (x+3)(x-2)

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