借方程:(1):(x-1)²=4 (2):(2x-1)³=-8
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借方程:(1):(x-1)²=4 (2):(2x-1)³=-8
借方程:(1):(x-1)²=4 (2):(2x-1)³=-8
借方程:(1):(x-1)²=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