Am nevoie rapid de rezolvare pt exercitiul 26!plzz

Am Nevoie Rapid De Rezolvare Pt Exercitiul 26plzz class=

Răspuns :

(3 /(x+3)+2/(x-3)+3/(x^2-9)):(1+(x^2+9)/(x^2-9))=

(3(x-3)+2(x+3)+3/(x^2-9)) :(1+(x^2+9)/(x^2-9))=

5x/(x^2-9):((x^2-9)/(x^2-9)+(x^2+9)/(x^2-9)=

(5x/(x^2-9)):((x^2)/(x^2-9))=

(5x/(x^2-9))*((x^2-9)/(2x^2))=

5x/(2x^2)=  5/2x