(3-2根号2)x²+2(根号2-1)x-1=0 解方程跪求谢谢各位啦~~~急死人了_其他解答

(3-2根号2)x²+2(根号2-1)x-1=0 解方程跪求谢谢各位啦~~~急死人了

人气：158 ℃　时间：2020-02-05 10:52:16

解答

(3-2√2)x^2 + 2(√2-1)*x -1 = 0(2-2√2+1)x^2 + 2(√2-1)*x -1 = 0(√2-1)^2*x^2 + 2(√2-1)*x -1 = 0((√2-1)*x)^2 + 2(√2-1)*x -1 = 0((√2-1)*x )^2+ 2(√2-1)*x +1= 2((√2-1)*x+1)^2 = 2(√2-1)*x+1 = √2 ...