Question

Va rog ajutati-ma!?Mersi anticipat@!

Answer 1

[tex] \frac{x}{2y}+ \frac{y}{2y}= \boxed{\frac{x+y}{2y}} \\ \frac{m}{2(m+n)}+^{2m+2n)}1= \boxed{ \frac{3m+2n}{2(m+n)} } \\ \frac{3a^2}{(a^2-1)}- \frac{a}{9a}= \frac{27a^3}{9a^3-9a}- \frac{a^3-a}{9a^3-9a}= \frac{a(a^2-1)}{9a(a^2-1)}=\boxed{ \frac{1}{9} } \\ ^{a+2)}\frac{a+2}{a}-^{a)}\frac{a}{a+2}= \frac{(a+2)^2}{a^2+2a}- \frac{a^2}{a^2+2a}=\boxed{ \frac{4(a+1)}{a(a+2)} } [/tex]