llabresking llabresking 05-11-2020 Mathematics contestada 1. x² + 4x + 3 = 0 2. 6x² + 12x - 18 = 0 3. x² + 4x - 21 = 0 4. 2x² + 3x - 2 = 0 5. 3x² - 10x - 8 = 0