5x/x^2-4

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Solution for 5x/x^2-4 equation: 


D( x )

x^2 = 0

x^2 = 0

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

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

(5*x)/(x^2)-4 = 0

5*x^-1 = 4 // : 5

x^-1 = 4/5

-1 < 0

1/(x^1) = 4/5 // * x^1

1 = 4/5*x^1 // : 4/5

5/4 = x^1

x = 5/4

x = 5/4

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