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(3/2)*x^2-(8*x)+8 = 0
(3/2)*x^2-8*x+8 = 0
3/2*x^2-8*x+8 = 0
DELTA = (-8)^2-(3/2*4*8)
DELTA = 16
DELTA > 0
x = (16^(1/2)+8)/(3/2*2) or x = (8-16^(1/2))/(3/2*2)
x = 4 or x = 4/3
x in { 4/3, 4 }
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