一、3(x-5)²=2(5-x)3(x-5)²+2(x-5)=0(x-5)(3x-15+2)=0(x-5)(3x-13)=0所以x=5 或x=13/3x=2/9二、2(x-3)²=9-x²2(x-3)²+(x²-9)=0(x-3)(2x-6)+(x+3)(x-3)=0 (x-3)(2x-6+x+3)=0 (x-3)(3x-3)=0 3(x-3)(x-1)=0所以x=3 或x=1第三道题应该抄写有误!