解一元二次方程:(2x-1)²-(4x+1)²=0还有:(x-1)²=(2x-1)²
问题描述:
解一元二次方程:(2x-1)²-(4x+1)²=0
还有:(x-1)²=(2x-1)²
答
过程我不多说X=-1 负1
答
(2x-1+4x+1)(2x-1-4x-1)=0
6x(-2x-2)=0
x=0,x=-1
(2x-1)²-(x-1)²=0
(2x-1+x-1)(2x-1-x+1)=0
x(3x-2)=0
x=0,x=2/3