-6х^2-17х+3 D=17^2+6*4*3=289+72=361 x1=(17+19)/(-12)=36/(-12)=-3 x2=(17-19)/(-12)=-2/(-12)=1/6 -6x^2-17x+3=-6(x+3)(x-1/6)=(x+3)(-6x+1)=(x+3)(1-6x)