-(2x+1)²=3(2x+1)²-4

问题描述:

-(2x+1)²=3(2x+1)²-4

-(2x+1)²=3(2x+1)²-4
3(2x+1)²+(2x+1)²-4=0
4(2x+1)² -4=0
(2X+1)²=1
2X+1=正负1
所以X1=0,X2=-1俺笨,详细讲解下呗-(2x+1)²=3(2x+1)²-43(2x+1)²+(2x+1)²-4=04(2x+1)² -4=04(2x+1)² =4(2X+1)²=12x+1=±12X+1=1,得2X=0,所以X=02X+1=-1,得2X=-2,所以X=-1所以X1=0,X2=-1