4(2x-1)²-16=0(2x-1)²=42x-1=-2或2x-1=2x=-0.5或x=1.5
4(2x-1)²-16=0解:4(2x-1)²=16 (2x-1)²=4 (2x-1)=2 2x=3 x=3/2