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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

1. 2x² - 3x - 7 = 0 2. I think there is something wrong with the equation in number 2. There has to be a degree 2 in the equation. If there's not, then it is considered as a linear equation, not as a quadratic. I hope you can follow this up. 3. x² + 7x + 12 = 0 4. 2x² + 5x - 7 = 0 5. 2x² - 6x - 15 = 0 6. x² + 3x + 49 = 0 7. x² + 16 + 8 = 0 8. x² + x + 2 = 0 9. 3x² = 0 10. x² + 8x + 9 = 0