Activity: "Quadratic Inequalities or not?" Directions: Determine whether the mathematical sentence is quadratic inequality or not.

1. x² + 9x + 14 > 0
2. 3s² – 5s = 1
3. 4t² – 7t + 2 ≤ 0
4. x² < 10x – 3
5. 12 – 5x + x² = 0
6. 3m + 20 ≥ 0
7. (2r – 5) (r + 4) > 0
8. x² – 1 < x + 1
9. (4h² – 9) (2h + 3) ≥ 0
10. 15 – 2x = 3x²

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