(y-2/y+2 + y+2/y-2) : 2y²+8/y²+4y+4
Решите задачу:
((y-2)²+(y+2)²)/((y-2)(y+2))·(y+2)²/(2y²+8)=(2y²+8)/((y-2)(y+2))·(y+2)²/(2y²+8)=(y+2)/(y-2)