SOLUTION: How do you factor x^2-x+30? I've tried almost everything to factor that expression but i either get x^2-x-30 or x^2+x-30 by trying (x-6)(x+5)and (-x+5)(-x-6)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: How do you factor x^2-x+30? I've tried almost everything to factor that expression but i either get x^2-x-30 or x^2+x-30 by trying (x-6)(x+5)and (-x+5)(-x-6)      Log On


   

Question 636800: How do you factor x^2-x+30? I've tried almost everything to factor that expression but i either get x^2-x-30 or x^2+x-30 by trying (x-6)(x+5)and (-x+5)(-x-6)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

x^2-x-30 = (x +5)(x-6) Might recommend a pattern of placing the + in 1st parenthesis

think of Using FOIL in your decision as to the placement of the minus sgn

F	First terms

O	Outside terms  -6x

I	Inside terms    5x

L	Last terms

or (either way..)

x^2-x-30 = (x-6)(x+5)

F	First terms

O	Outside terms   5x

I	Inside terms    -6x

L	Last terms