3x^2-8x+2=0 a=3, b=-8, c=2 D=b^2-4ac=(-8)^2-4*3*2=64-24=40 x1,2=-b+-VD/2a=8+-V40/2*3=8+-V40/6 x1=8+V40/6 x2=8-V40/6