📐 MathLevel 2 — 🟢 Basicquadratic👁 18 views⏱ 2 min read
Giải: 3x² - 19x - 20 = 0
📝 Problem
3x² - 19x - 20 = 0✨Detailed Solution
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🔒 19 steps remaining
🔒 19 steps remaining
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