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(x-2)^2 - (x-5)^2>0
(x-2 + (x-5)) ( x - 2 -(x-5)) >0
( x - 2 +x -5) ( x -2 -x +5) >0
(x + x -2 -2) ( x -x -2 +5) >0
(2x -4) ( 3) >0
2x - 4>0 atau 3>0
2x > 4
x >4/2
x >2
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