2x²-4√2x+3=0 2x²-4√2x+3=0 2x²-4√2x=-3x²-2√2x=-3/2x²-2√2x+(√2)²=-3/2+(√2)²(x-√2)²=-3/2+2(x-√2)²=1/2x-√2=±(√2)/2所以得到两个根为：x₁=(3√2)/2x₂=...