Question 606674
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Hi,
what are the roots of: y=x^2-x-2
x^2-x-2 = 0
Factoring***
(x-2)(x+1) = 0
(x-2) = 0 , x = 2
(x+1) = 0 , x = -1
Checking our factoring using the FOIL method***
F	First terms  x^2
O	Outside terms  x
I	Inside terms  -2x
L	Last terms    -2