(2x-1)²=(-5)²
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(2x-1)²=(-5)²(2x-1)²=(-5)²(2x-1)²=(-5)²(2x-1)²=(-5)²(2x-1)
(2x-1)²=(-5)²
(2x-1)²=(-5)²
(2x-1)²=(-5)²
(2x-1)²=(-5)²
(2x-1)²=25
2x-1=±5
2x=1±5
2x=6或2x=-4
x=3或x=-2
(2x-1)²=(-5)²
(2x-1)²-(-5)² =0
[2x-1+(-5)]*[2x-1-(-5)]=0
(2x-6)(2x+4)=0
2x-6=0或者2x+4=0
x=3或者x=-2