x²-4y²=9 dan 4x²-2y²=92 tlng jwab dgn bnar dn pke cranya

x² - 4y² = 9|× 1
4x² - 2y² = 92|× 2

x² - 4y² = 9
8x² - 4y² = 184
___________—
- 7x² = - 175
x² = 25
x = 5

4x² - 2y² = 92
4(25) - 2y² = 92
100 - 2y² = 92
- 2y² = 92 - 100
- 2y² = - 8
y² = 4
y = 2

Maaf Kalau Salah