4x^2-4x-3 4*-3= -12 (-1+12= 11) (2-6= 4) (-3+4= 1) 4x^2+2x-6x-3 2x(2x+1)-3(2x+1) 2x+1= 0 2x-3= 0 (x= 1/2) (x= 3/2)
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