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(1/4)*(x^2-(3*x)+4) = 0
(1/4)*(x^2-3*x+4) = 0
1/4*(x^2-3*x+4) = 0
x^2-3*x+4 = 0
x^2-3*x+4 = 0
DELTA = (-3)^2-(1*4*4)
DELTA = -7
DELTA < 0
1 = 0
1/4 = 0
x belongs to the empty set
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