2x²+1=3x2x²+1-3x=02x²-3x+1=0(2x-1)(x-1)=02x-1=0或x-1=0x1=1/2或x2=1
2x平方加1等于3x 2x²-3x+1=0(x-1)(2x-1)=0x1=1 x2=1/2
2*x2+1=3x2*x2+1-3x=0十字交叉法:(-x+1)(-2x+1)=0X=1;x=1/2