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x^2-((12*x)/5)+1.44 = 0
x^2+(-12/5)*x+1.44 = 0
x^2-12/5*x+1.44 = 0
DELTA = (-12/5)^2-(1*1.44*4)
DELTA = 0
x = 12/5/(1*2)
x = 6/5 or x = 6/5
x in { 6/5, 6/5 }
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