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Va rog frumos ajutati-ma

Va Rog Frumos Ajutatima class=

Răspuns :

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