2/(x+3)-2/(x-3)

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Solution for 2/(x+3)-2/(x-3) equation: 


D( x )

x-3 = 0

x+3 = 0

x-3 = 0

x-3 = 0

x-3 = 0 // + 3

x = 3

x+3 = 0

x+3 = 0

x+3 = 0 // - 3

x = -3

x in (-oo:-3) U (-3:3) U (3:+oo)

2/(x+3)-(2/(x-3)) = 0

2/(x+3)-2*(x-3)^-1 = 0

2/(x+3)-2/(x-3) = 0

(2*(x-3))/((x+3)*(x-3))+(-2*(x+3))/((x+3)*(x-3)) = 0

2*(x-3)-2*(x+3) = 0

-12 = 0

-12/((x+3)*(x-3)) = 0

-12/((x+3)*(x-3)) = 0 // * (x+3)*(x-3)

-12 = 0

x belongs to the empty set

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