用因式分解法解方程:4x^2-(x-1)^2=0
问题描述:
用因式分解法解方程:4x^2-(x-1)^2=0
答
4x^2-(x-1)^2=0
[2x-(x-1)][2x+(x-1)]=0
(2x-x+1)(2x+x-1)=0
(x+1)(3x-1)=0
x=-1或x=1/3