2x²-7x+6=0(2x-3)(x-2)=0x=1.5, x=24x²-x-1=3x-24x²-4x+1=0x=(4±√(-4)²-4*4*1)/(2*4)x=1/23y²-6y+2=03(y²-2y+2/3)=03(y²-2y+1)-3*1/3=03(y^2-2y+1)=1(y-1)²=1/3y=√(1/3)+1y=-√(1/3)+1
是不是题目打错了啊,有点不对啊
(x-1)(x-6)=0