-0.5x=4/x

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Solution for -0.5x=4/x equation: 


D( x )

x = 0

x = 0

x = 0

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

-0.5*x = 4/x // - 4/x

-0.5*x-(4/x) = 0

-0.5*x-4*x^-1 = 0

-0.5*x-4*x^-1 = 0

-x^-1*(0.5*x^2+4) = 0

0.5*x^2 = -4 // : 0.5

x^2 = -8

-1/x = 0

-1*x^-1 = 0 // : -1

x^-1 = 0

x należy do O

x belongs to the empty set

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