4（x+3）²-16=0
(x+3)²=4
x+3=±2
x=-5,x=-1
3-(2x-1)²=0
(2x-1)²=3
2x-1=±√3
x=(1-√3)/2,x=(1+√3)/2
(3x-1)^2=(x+1)^2
3x-1=x+1或3x-1=-(x+1)=-x-1
x=1,x=0