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x ∈ (-∞ : ∞)
(2x -1) * (x-2)=(1-2x) * (x+2) /-(1-2x)*(x+2)
(2*x -1) * (x-2)-(1-2*x) * (x+2) =0
(2x-1)(x-2) +(2x-1)(x+2)=0
(2x-1)(x-2+x+2)=0
(2x-1)*2x=0
x=0
x∈ {0, 1/2}