(1)
(2)
(2)3x2−6x+4=0.
解方程(1)x2-6x-5=0; (2)2(x-1)2=3x-3.
用适当的方法解下列一元二次方程: (1)x2+3=3x+1; (2)2x2-4x+1=0.