9x² - 4y² = 2
(3x - 2y)(3x + 2y) = 2
3x + 2y = 2/(3x - 2y)
---
4y(3x + 2y) = 23
4y*2/(3x - 2y) = 23
8y = 23(3x - 2y)
8y = 69x - 46y
54y = 69x
18y = 23x
x = 18/23y
4y(54/23y + 2y) = 23
4y(54y + 46y) = 23²
400y² = 23²
y² = (23/20)²
y = +- 23/20
ордината это точка на OY
ордината = +- 23/20
9x² - 4y² = 2
(3x - 2y)(3x + 2y) = 2
3x + 2y = 2/(3x - 2y)
---
4y(3x + 2y) = 23
4y*2/(3x - 2y) = 23
8y = 23(3x - 2y)
8y = 69x - 46y
54y = 69x
18y = 23x
x = 18/23y
4y(54/23y + 2y) = 23
4y(54y + 46y) = 23²
400y² = 23²
y² = (23/20)²
y = +- 23/20
ордината это точка на OY
ордината = +- 23/20