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x in (-oo:+oo)
x^2-((24/37)*x)-(13/37) = 0
x^2+(-24/37)*x-13/37 = 0
x^2-24/37*x-13/37 = 0
DELTA = (-24/37)^2-(-13/37*1*4)
DELTA = 2500/1369
DELTA > 0
x = ((2500/1369)^(1/2)+24/37)/(1*2) or x = (24/37-(2500/1369)^(1/2))/(1*2)
x = 1 or x = -13/37
x in { -13/37, 1 }
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