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x in (-oo:+oo)
(3/2)*(x-2)^2-4 = 2 // - 2
(3/2)*(x-2)^2-4-2 = 0
3/2*(x-2)^2-4-2 = 0
3/2*(x-2)^2-4-2 = 0
3/2*x^2-6*x-2+2 = 0
3/2*x^2-6*x = 0
3/2*x^2-6*x = 0
3*x*(1/2*x-2) = 0
1/2*x-2 = 0 // + 2
1/2*x = 2 // : 1/2
x = 2/1/2
x = 4
3*x*(x-4) = 0
3*x*(x-4) = 0
( 3*x )
3*x = 0 // : 3
x = 0
( x-4 )
x-4 = 0 // + 4
x = 4
x in { 0, 4 }
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