2(x-3)=3x(x-3)求解 x²-4x+2=0
问题描述:
2(x-3)=3x(x-3)求解 x²-4x+2=0
答
2(x-3)=3x(x-3)
(3x-2)(x-3)=0
x=2/3或3
x²-4x+2=0
x=[(4±√(-4)^2-4*1*2)]/(2*1)
=2±√3