帮忙算下
要有过程
解答:
(x-3)2 =4(2X+1)2
(x-3)2-[2(2X+1)]2=0
(x-3)2-(4x+2)2=0
(x-3+4x+2)(x-3-4x-2)=0
(5x-1)(-3x-5)=0
X1=1/5或者x2=-3/5