9 If the nature of roots of a quadratic equation is real, rational and unequal, what would be the possible value of b²-4ac? A. b2-4ac = 0 C. b2-4ac > O but not a perfect square B. b2-4ac < 0 D. b2-4ac > 0 and is a perfect square te?
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9 If the nature of roots of a quadratic equation is real, rational and unequal, what would be the possible value of b²-4ac?
Answer:
D. b2-4ac > 0 and is a perfect square
A is real, rational and equal roots
B is unreal roots
C is real, rational and unequal roots