4(x-1)눀=25用平方根解

2025-01-06 15:23:34
推荐回答(1个)
回答1:

4(x-1)²=25
[2(x-1)]²=5²
2(x-1)=±5
x-1=±5/2
x=1±5/2
x1=7/2,x2=-3/2