(x/x^2-1)+(4/x+1)

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Solution for (x/x^2-1)+(4/x+1) equation: 


D( x )

x = 0

x^2 = 0

x = 0

x = 0

x^2 = 0

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

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

x/(x^2)+4/x-1+1 = 0

5*x^-1 = 0 // : 5

x^-1 = 0

x naleu017Cy do O

x belongs to the empty set

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