차 방정식:(1):(x-1)&\#178;=4 (2):(2x-1)³=-8

차 방정식:(1):(x-1)&\#178;=4 (2):(2x-1)³=-8

(1)
(x-1)²=4
x-1=±2
x-1=2
x1=3
x-1=-2
x2=-1
(2):(2x-1)³=-8
2x-1=-2
2x=-1
x=-1/2