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D( x )
x+2 = 0
3*x-2 = 0
x+2 = 0
x+2 = 0
x+2 = 0 // - 2
x = -2
3*x-2 = 0
3*x-2 = 0
3*x-2 = 0 // + 2
3*x = 2 // : 3
x = 2/3
x in (-oo:-2) U (-2:2/3) U (2/3:+oo)
8/(3*x-2) = 3/(x+2) // - 3/(x+2)
8/(3*x-2)-(3/(x+2)) = 0
8/(3*x-2)-3*(x+2)^-1 = 0
8/(3*x-2)-3/(x+2) = 0
(8*(x+2))/((3*x-2)*(x+2))+(-3*(3*x-2))/((3*x-2)*(x+2)) = 0
8*(x+2)-3*(3*x-2) = 0
22-x = 0
(22-x)/((3*x-2)*(x+2)) = 0
(22-x)/((3*x-2)*(x+2)) = 0 // * (3*x-2)*(x+2)
22-x = 0
22-x = 0 // - 22
-x = -22 // * -1
x = 22
x = 22
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