What the value
Discriminant
(value of b2 – 4ac = 0)
1. 2 − 5 + 4 = 0
____________________ ____________________
2.
2 = 8 − 3 ____________________ ____________________
3.
2 + 12 = 4 ____________________ ____________________
4. 4
2 + 4 = −1 ____________________ ____________________
5. 32 − 5 = −2 ____________________ ____________________
Nature of roots
1. 2 − 5 + 4 = 0
____________________ ____________________
2.
2 = 8 − 3 ____________________ ____________________
3.
2 + 12 = 4 ____________________ ____________________
4. 4
2 + 4 = −1 ____________________ ____________________
5. 32 − 5 = −2
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Answer:
1 . 3.5 2.57755.6 3.7906.