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x in (-oo:+oo)
x*(1-(x/48)) = 260 // - 260
x*(1-(x/48))-260 = 0
x*(1-1/48*x)-260 = 0
x*(1-1/48*x)-260 = 0
x-1/48*x^2-260 = 0
x-1/48*x^2-260 = 0
x-1/48*x^2-260 = 0
DELTA = 1^2-(-260*(-1/48)*4)
DELTA = -62/3
DELTA < 0
1 = 0
1 = 0
x belongs to the empty set
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