(x + 4y)/y = 12
x/y + 4y/y = 12
x/y + 4 = 12
x/y = 8
x = 8y
(x² + 16y²)/(x² - 3xy) = (64y² + 16y²)/(64y² - 24y²) = 80y²/40y² = 2
ответ: 2.
(x + 4y)/y = 12
x/y + 4y/y = 12
x/y + 4 = 12
x/y = 8
x = 8y
(x² + 16y²)/(x² - 3xy) = (64y² + 16y²)/(64y² - 24y²) = 80y²/40y² = 2
ответ: 2.