Question

Упростить выражение подробно.

Answer 1

Ответ:

Смотри в решении

Объяснение:

$(\frac{2}{y^2-9}+\frac{1}{3y-y^2})/\frac{1}{y^2+6y+9}\\(\frac{2}{(y-3)(y+3)}+\frac{1}{y(3-y)})/\frac{1}{(y+3)^2}\\(\frac{2}{(y-3)(y+3)}-\frac{1}{y(y-3)})/\frac{1}{(y+3)^2} \\(\frac{2y-(y+3)}{y(y-3)(y+3)})/\frac{1}{(y+3)^2}\\(\frac{2y-y-3}{y(y-3)(y+3)})/\frac{1}{(y+3)^2}\\ \frac{y-3}{y(y-3)(y+3)}/\frac{1}{(y+3)^2}\\ \frac{(y-3)(y+3)^2}{y(y-3)(y+3)}\\\frac{y+3}{y}$