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Problema 5 vă tog! :)

Problema 5 Vă Tog class=

Răspuns :

2/(x+2)+(x+2)(x²+4x+4-2x)/(x+2)²:(x²+2x+4)/4=
2/(x+2)+(x²+2x+4)/(x+2)•x/(x²+2x+4)=
2/(x+2) + x/(x+2)=(2+x)/(x+2)=1