2(2x-1)눀=3用直接开平方解 2x눀+4x-1=0用配方法解

2024-12-12 21:44:52
推荐回答(1个)
回答1:

解:2(2x-1)^2=3
(2x-1)^2=3/2
2x-1=±√6/2
x=(±√6+1)/4

2x^2+4x-1=0
x^2+2x-1/2=0
x^2+2x+1-1-1/2=0
(x+1)^2=3/2
x+1=±√6/2
x=(1±√6)/2