Hi,

2x^2-x-3=0

factoring

(2x -3)(x+1) = 0

(2x -3)=0    x = 3/2

 (x+1) = 0   x = -1



checking the factoring with FOIL

F	First terms 2x^2

O	Outside terms 2x

I	Inside terms -3x

L	Last terms   -3

 

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