(2x-1)裤睁²=(3-x)²(2x-1)²-(3-x)²=0 平方差态弊公式(2x-1+3-x)(2x-1-3+x)=0(x+2)(3x-4)=0x1=-2 x2=4/帆纯族3
(2x-1)²=(3-x)²4x²-4x+1=9-6x+x²运差 3x²拿册+2x-8=0 (3x-4)(x+2)=0 x=3/4或消悄宏x=-2