(1)(x-1)²-169=0,
(x-1)²=169
x-1=±13
x-1=13或x-1=-13
x1=14, x2=-12
(2)二分之一(x+1)³=4
(x+1)³=8
x+1=2
x=1
解:
(1)
(x-1)²=169
x-1=13或-13
x=14或-12
(2)
(1/2)(x+1)³=4
(x+1)³=8
x+1=2
x=1
1、(x-1)^2=169
(x-1)^2=13^2
x-1=±13
x1=14,x2=-12
2、(x+1)^3=8=2^3
x+1=2
x=1