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D( x )
2*(1-(2*x))^2 = 0
2*(1-(2*x))^2 = 0
2*(1-(2*x))^2 = 0
2*(1-2*x)^2 = 0
( 1-2*x )
1-2*x = 0 // - 1
-2*x = -1 // : -2
x = -1/(-2)
x = 1/2
( 2 )
2 = 0
x belongs to the empty set
x in (-oo:1/2) U (1/2:+oo)
1/2-(1/(2*(1-(2*x))^2)) = 0
(-1/2)*(1-2*x)^-2+1/2 = 0
1/2-1/2/((1-2*x)^2) = 0
(-1/2*2)/(2*(1-2*x)^2)+(1*(1-2*x)^2)/(2*(1-2*x)^2) = 0
1*(1-2*x)^2-1/2*2 = 0
4*x^2-4*x = 0
4*x^2-4*x = 0
4*x*(x-1) = 0
x-1 = 0 // + 1
x = 1
4*x*(x-1) = 0
(4*x*(x-1))/(2*(1-2*x)^2) = 0
(4*x*(x-1))/(2*(1-2*x)^2) = 0 // * 2*(1-2*x)^2
4*x*(x-1) = 0
( 4*x )
4*x = 0 // : 4
x = 0
( x-1 )
x-1 = 0 // + 1
x = 1
x in { 0, 1 }
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