Question

$2 a^{2} + ab - \frac{ab}{2}$

Answer 1

Resposta:

(a²+2ab+b²/(a²-b²)-(a-b)/(a+b)= (a+b)/(a-b)(a+b)x(a+b)/(a-b)=

(a+b)/(a-b)²=

[(a+b)/(a-b)]²