30x+18/x=-48

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Solution for 30x+18/x=-48 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

30*x+18/x = -48 // + 48

30*x+18/x+48 = 0

30*x^1+18*x^-1+48*x^0 = 0

(30*x^2+48*x^1+18*x^0)/(x^1) = 0 // * x^2

x^1*(30*x^2+48*x^1+18*x^0) = 0

x^1

30*x^2+48*x+18 = 0

30*x^2+48*x+18 = 0

DELTA = 48^2-(4*18*30)

DELTA = 144

DELTA > 0

x = (144^(1/2)-48)/(2*30) or x = (-144^(1/2)-48)/(2*30)

x = -3/5 or x = -1

x in { -1, -3/5} 

x in { -1, -3/5 }

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