(2x-3)(2x-3)=12-8x4x^2-12x+9=12-8x4x^2-4x-3=0(2x-3)(2x+1)=02x-3=0或2x+1=02x=3x=1.52x+1=0x=-0.5
(2x-3)^2=4(3-2x)^2(2x-3)^2-4(3-2x)^2=0(2x-3-2(3-2x))(2x-3+2(3-2x)=0(6x-9)(3-2x)=0x1=3/2 x2=3/2 x1=x2=3/2
等于3.5或1.5