(1) x²+4x-6=0x²+4x=6x²+4x+4=6+4(x+2)²=10x+2=±√10所以x=-2+√10,或x=-2-√10(2) 3x(x-1)=2-2x3x(x-1)=2(1-x)3x(x-1)-2(1-x)=03x(x-1)+2(x-1)=0(x-1)(3x+2)=0所以x-1=0,或3x+2=0所以x=1,或x=...