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1. 2x² – 10x + 80 = 0
2, x² + x + 1 = 0
3. x² + 2x = 0
4. 4x² – 5x = 6
5. 3x² – 2x – 5 = 0

baka alam nyo po yung Descriminant at Nature of the roots nila? ​