4/-x-3.2/-x-2+2/-5

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Solution for 4/-x-3.2/-x-2+2/-5 equation: 


D( x )

-x = 0

-x = 0

x = 0

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

4/(-x)-(3.2/(-x))+2/(-5)-2 = 0

4/(-x)+3.2*x^-1+2/(-5)-2 = 0

-0.8*x^-1 = 12/5 // : -0.8

x^-1 = -3

-1 < 0

1/(x^1) = -3 // * x^1

1 = -3*x^1 // : -3

-1/3 = x^1

x = -1/3

x = -1/3

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