Question

a/a-b -b/a+b ajutatima varog imi trebuie acum

Answer 1

=$\frac{a(a+b)}{(a+b)(a-b)}$-$\frac{b(a-b)}{(a+b)(a-b)}$=
=$\frac{a^2-b^2}{a^2-b^2}$=
=1.