February 2019 1 34 Report
1. Tentukan penyelesaian dari sistem persamaan berikut.

a. 5x² - y² = 19
x² - 5y² = -1

b. 2x² - 3 = -(1 + y)²
x² + (1 + y)² = 2

c. 3x² - 2 = y²
x² + 6 = y²

Jawablah pertanyaan diatas menggunakan cara dan metode eliminasi !
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