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Verified answer
Kelas 10 MatematikaBab Persamaan Kuadrat
a - 2 = x
a = x + 2
2x² - 3x - 4 = 0
2 (x + 2)² - 3 (x + 2) - 4 = 0
2 (x² + 4x + 4) - 3x - 6 - 4 = 0
2x² + 8x + 8 - 3x - 10 = 0
2x² + 5x - 2 = 0
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