2x^2-3x-2
2x^2-3x-2
2*-2= -4
(1+-4= -3)
2x^2-4x+1x-2
x-2= 0 2x+1= 0
+2+2 -1-1
(x= 2) 2x= -1
2/2 . -1/2
(x= 2)(x= -1/2)
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2x^2-3x-2
2*-2= -4
(1+-4= -3)
2x^2-4x+1x-2
x-2= 0 2x+1= 0
+2+2 -1-1
(x= 2) 2x= -1
2/2 . -1/2
(x= 2)(x= -1/2)
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