3x^2-2x-1 Делить на x-2

3x²-2x-1 / x-2=(x-1)(x+1/3) / x-1=x+1/33x²-2x-1=0D=4+12=16x1=2+4/6=6/6=1x2=2-4/6=-2/6=-1/33x²-2x-1=(x-1)(x+1/3)