Question

5y+1/y²-9 - y+4/9-y² - 7-2y/9-y² =?

Answer 1

Ответ: 4/y-3

Объяснение:

5y+1/y²-9 - y+4/9-y² - 7-2y/9-y² =?

5y+1/y²-9 - y+4/-(y²-9) - 7-2y/-(y²-9)

5y+1/y²-9 + y+4/y²-9 + 7-2y/y²-9

5y+1+y+4+7-2y/y²-9

4y+12/(y-3)×(y+3)

4(y+3)/(y-3)×(y+3)

4/y-3 - Ответ