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10*x^2-((25*x)/12) = 5 // - 5
10*x^2-((25*x)/12)-5 = 0
10*x^2+(-25/12)*x-5 = 0
10*x^2-25/12*x-5 = 0
DELTA = (-25/12)^2-(-5*4*10)
DELTA = 29425/144
DELTA > 0
x = ((29425/144)^(1/2)+25/12)/(2*10) or x = (25/12-(29425/144)^(1/2))/(2*10)
x = ((29425/144)^(1/2)+25/12)/20 or x = (25/12-(29425/144)^(1/2))/20
x in { (25/12-(29425/144)^(1/2))/20, ((29425/144)^(1/2)+25/12)/20 }
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