4(x-1)²=25
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4(x-1)²=25
4(x-1)²=25
4(x-1)²=25
4(x-1)²=25
(x-1)²=25/4
(x-1)²-25/4=0
(x-1-5/2)(x-1+5/2)=0
(x-7/2)(x+3/2)=0
x1=7/2
x2=-3/2
4x²-8x+4=25