Объяснение:
(3a+2)/(a-1)² - 6/(a-1)(a+1) - (3a-2)/(a+1)²= ((3a+2)*(a+1)²-6(a²-1)-(3a-2)*(a-1)²)/(a²-1)²= (3a³+8a²+7a+2-6a²+6-3a³+8a²-7a+2)/(a²-1)²= (10a²+10)/(a²-1)²= 10(a²+1)/(a²-1)²
