(2x-1)²-169=0
2x-1=±13
x=7或x=-6
4(3x+1)²-1=0
(3x+1)²=1/4
3x+1=±1/2
x=-1/6或x=-1/2
27x³/4-2=0
27x³=8
x³=(2/3)³
x=2/3
(x+3)³/2=4
(x+3)³=2³
x+3=2
x=-1
9x²-256=0
x²=256/9
x²=(16/3)²
x=±16/3
4(2x-1)²=25
(2x-1)²=25/4
2x-1=±5/2
x=7/4或x=-3/4
(2x+1)²-16=0
2x+1=±4
x=3/2或x=-5/2
4(2x+1)²=16
(2x+1)²=4
2x+1=±2
x=1/2或x=-3/2
-100(x-1)²=(-4)³
(x-1)²=(8/10)²
x-1=±8/10
x=9/5或x=1/5
(x-3)³=-8
x-3=-2
x=1
4(3x+1)²-1=0
3x+1=±1/2
x=-1/6或x=-1/2
4(x-1)²=25
x-1=±5/2
x=7/2或x=-3/2